Php 在foreach中优化while和SQL
我的代码:Php 在foreach中优化while和SQL,php,mysql,process,foreach,while-loop,Php,Mysql,Process,Foreach,While Loop,我的代码: $text = '12-name-y-86'; $array = explode('-',$text); foreach($array as $value) { $sql = mysql_query("SELECT * FROM `table` WHERE `pid`='$value' ORDER BY `id` LIMIT 3"); echo '***'.$value.'***'; echo '<br />'; while($ro
$text = '12-name-y-86';
$array = explode('-',$text);
foreach($array as $value) {
$sql = mysql_query("SELECT * FROM `table` WHERE `pid`='$value' ORDER BY `id` LIMIT 3");
echo '***'.$value.'***';
echo '<br />';
while($row = mysql_fetch_array($sql)) {
echo $row['title'];
echo '<br />';
}
echo '<br /><br />';
}
$text='12-name-y-86';
$array=分解('-',$text);
foreach($array作为$value){
$sql=mysql\u查询(“从`table`中选择*WHERE`pid`=`value`按`id`LIMIT 3'排序”);
回显'***'.$value.'***';
回声“
”;
while($row=mysql\u fetch\u数组($sql)){
echo$row['title'];
回声“
”;
}
回音“
”;
}
打印:
12
标题1
标题2
标题3
名称
ti1
ti2
ti3
y
tle1
tle2
tle3
86
mytitle1
mytitle2
mytitle3
此代码的工作完全购买更多的价值在$text,服务器已关闭 尝试在一个查询中选择所有记录,如下所示:
$text = '12-name-y-86';
$array = explode('-', $text);
$array = "'" . implode(',', $array) . "'";
$sql = mysql_query("SELECT * FROM `table` WHERE `pid` IN (' . $array . ') ORDER BY `id` LIMIT 3");
while($row = mysql_fetch_array($sql)) {
echo $row['title'];
echo '<br />';
}
echo '<br /><br />';
$text='12-name-y-86';
$array=分解('-',$text);
$array=“””。内爆(“,”,$array)。"'";
$sql=mysql_query(“按`id`LIMIT 3`顺序从`table`中选择*,其中`pid`位于('.$array.'));
while($row=mysql\u fetch\u数组($sql)){
echo$row['title'];
回声“
”;
}
回音“
”;
resource(49)类型(mysql结果),但不是echo标题!可能重复的