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  • Php 如何按常规小部分更新数据库表 SD->流行度['TEXT']； }

Php 如何按常规小部分更新数据库表 SD->流行度['TEXT']； }

php mysql ajax loops

Php 如何按常规小部分更新数据库表 SD->流行度['TEXT']； },php,mysql,ajax,loops,foreach,Php,Mysql,Ajax,Loops,Foreach,我有这个脚本，我使用wordpress数据库类而不使用wordpress。我将行数限制为200行，因为否则我会遇到一些问题，比如页面加载需要几年时间，或者来自alexa函数的xml需要很长的php执行时间。我有很多URL要在数据库中检查，我想用一个操作更新它们，这意味着取消200个限制。我需要做什么才能让它像一次做50个，然后输出，然后继续？AJAX我该怎么做 $page = $_GET["page"]; // I skip the validation, you should do it be

我有这个脚本，我使用wordpress数据库类而不使用wordpress。我将行数限制为200行，因为否则我会遇到一些问题，比如页面加载需要几年时间，或者来自alexa函数的xml需要很长的php执行时间。我有很多URL要在数据库中检查，我想用一个操作更新它们，这意味着取消200个限制。我需要做什么才能让它像一次做50个，然后输出，然后继续？AJAX我该怎么做

$page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>
更新1：

$page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>
正如我在评论中所说，我正在寻找一些东西来实现我的网站（在后台）的这种情况，实际上我并不确定这一点是否达到了php执行时间限制，但对于“一次性”解决方案，我只是在队列末尾测试了flush（），它不起作用

$page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>
但我正在寻找一个常规的功能，现在我更新了问题，答案是非常一般的，我不是经验。我想看到一些实际的代码。如果这太多了，而且倾向于“给我写一个程序”，那么我必须花些时间挖掘，找出这个问题。然后我将接受最有帮助的答案。

您的直接问题（脚本运行时如何启动输出）很容易回答：

<?php

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT 200" );
?>
<table>
<tbody>
<?php
foreach ( $test as $row ){
    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    echo '<tr>';
    echo '<td>' . $row['hoster_id'] . '</td>';
    echo '<td>' . $row['hoster'] . '</td>';
    echo '<td>' . $rank . '<td>';
    echo '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );
    flush(); // <----- NOT working.
}
?>
</tbody>
</table>
<?php
function alexaRank( $url ) {
    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>
但如果PHP执行时间限制限制了您，那么它将无法解决您的问题。这就剩下AJAX了：

$page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>
  • 将脚本分为两个文件：一个包含空的
    和JavaScript，另一个将通过AJAX调用，执行实际处理并返回表行
  • 限制处理的行数，如下所示：
    limit$start，50
    ，其中
    $start
    通过GET/POST参数提供
  • 在JavaScript中，首先调用start=0的PHP脚本，然后在处理响应后，再次调用start增加50的PHP脚本。重复，直到响应为空
如果您只想更新行，并且想知道哪些项目已更新，则不需要Web服务器。您可以使用记录器->而不是“echo”，并将更新信息写入磁盘。 在这种情况下，使用具有优势。您可以设置最大执行时间（0）并增加内存限制。另外，我认为它比使用apache或nginx快一点。
你想进行批量更新吗？看看这个。或者你也可以使用。如果在工作和检查中有很多不同的状态，不要忘记索引它们

以下是您应该如何看待它：

$page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>
  • 创建一个大的上帝之母循环
  • 保留$total计数器和$temp计数器
  • 循环迭代100（n）次，每次增加计数器
  • 一旦您达到100个数字限制（或50或200或其他），您将重置温度计数器
  • 你让程序进入睡眠状态3秒钟（或类似的时间）
  • 您再次遍历temp变量n次，但请求与$total计数器对应的数据
或

$page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>
  • 创建一个大的上帝之母循环
  • 有一个柜台
  • 在每次循环迭代中增加计数器
  • 一旦反击达到你定义的最大值，你就重置它
  • 睡觉
  • 重复一遍
这两种方式都有好处

$page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>
现在，由于您需要一些代码和解释：

$page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>
PHP手册说明：

flush();

$page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>
因此，程序执行被延迟，如果延迟了执行时间，则无法达到限制

$page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>
所以你可以这样做：

int sleep ( int $seconds )
"Delays the program execution for the given number of seconds."

$page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>

$i=0；
$max=50；
$sleepTime=3；
foreach（$testas$row）{
$rank=（int）alexaRank（$row['hoster']）；
如果（$rank==0）
$rank=99999999；
回声'；
回显“.$row['hoster_id']”；
回显'.$row['hoster'].'；
回声“.$rank.”；
回声'；
$wpdb->update（'fhw_filehosters'，数组(
“alexa”=>$rank，
“alexacheck”=>1
),
排列(
'hoster_id'=>$row['hoster_id']
),
排列(
“%d”，
“%d”
),
数组（“%d”）
);
ii（$i===$max）
{
$i=-1；
睡眠（睡眠时间）；
}
$i++；
}
至少尝试一下，最好的学习方法是体验。

像这样的长时间运行的流程可能适合工作队列

$page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>
  • 一次将50个URL排入一个队列
  • 让每个作业队列工作人员在完成后将结果发送到主应用程序
  • 然后，应用程序将在结果从队列中传入时处理结果的显示
    • 这一切都应该异步完成

    $page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>
    当应用程序进入“维护”模式时。您仍然可以使用相同的作业队列。就像上面提到的一条评论一样，您甚至可以有一个cron作业，它每天向队列发送两次作业。

    我通常使用函数和。这对我来说很有用。

    首先，将工作代码与基本代码和前端代码分开会很好，这样：

    $page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>
  • ajax.getdata.php//这里我们根据给定的参数获取数据

    $page = $_GET["page"]; // I skip the validation, you should do it be yourself

require_once( dirname(__FILE__) . '/shared.php');

function tabelle_holen_hosters( $condition = "" ) {
    global $wpdb;
    $sql = "SELECT * FROM whatever" . $condition;

    if( $table = $wpdb->get_results( $sql, ARRAY_A ) ) {
        return $table;
    } else {
        echo "SQL ERROR in tabelle_holen()";
        var_dump( $table );
        return false;
    }
}

function alexaRank( $url ) {

    $request_url = "http://data.alexa.com/data?cli=10&url=".$url;
    $xml = simplexml_load_file($request_url) or die("feed not loading");
    return $xml->SD->POPULARITY['TEXT'];
}

$limit = 200;

$start= $page*$limit;

$test = tabelle_holen_hosters( " WHERE working=1 AND alexacheck=0 LIMIT $start,$limit" );



 $str = '<table>';

foreach ( $test as $row ){

    $rank = (int) alexaRank( $row['hoster'] );

    if ($rank == 0)
        $rank = 999999999;

    $str.= '<tr>';
    $str.= '<td>' . $row['hoster_id'] . '</td>';
    $str.= '<td>' . $row['hoster'] . '</td>';
    $str.= '<td>' . $rank . '<td>';
    $str.= '</tr>';

    $wpdb->update(
    'fhw_filehosters',
        array(
            'alexa' => $rank,
            'alexacheck' => 1
        ),
        array( 'hoster_id' => $row['hoster_id'] ),
        array(
            '%d',
            '%d'
        ),
        array( '%d' )
    );

}

$str.='</table>';

echo $str;

exit;

?>

    $page=$\u GET[“page”]；//我跳过验证，你应该自己做
require_once（dirname（__文件）'/shared.php'）；
功能表（$condition=”“）{
全球$wpdb；
$sql=“从任何条件中选择*”$condition；
if（$table=$wpdb->get_results（$sql，ARRAY_A））{
返回$table；
}否则{
echo“tabelle_holen（）中的SQL错误”；
var_dump（$表）；
返回false；
}
}
函数名（$url）{
$request_url=”http://data.alexa.com/data?cli=10&url=“$url；
$xml=simplexml_load_file（$request_url）或die（“提要未加载”）；
返回$xml->SD->POPULARITY['TEXT']；
}
$limit=200；
$start=$page*$limit；
$test=tabelle_holen_hosters（“其中工作=1，alexacheck=0限制$start，$LIMIT”）；
$str=''；
foreach（$testas$row）{
$rank=（int）alexaRank（$row['hoster']）；
如果（$rank==0）
$rank=99999999；
$str=