如何使用preg_match从这个PHP字符串中提取数据?
在数据数组5436342W5中提取内容的最佳方法是什么。。。从以下php字符串:如何使用preg_match从这个PHP字符串中提取数据?,php,arrays,preg-match,Php,Arrays,Preg Match,在数据数组5436342W5中提取内容的最佳方法是什么。。。从以下php字符串: series: [{ type: 'area', name: 'product_data', data: [ 5436, 342w5, 564s5, 6778, 8954, 567e5, 6578, 67584 ] }] 下面是什么 preg_match("/(.*), (.*)/", $input_line, $output_array); 提前感谢: 编辑:完成下面的代码 PHP:
series: [{
type: 'area',
name: 'product_data',
data: [ 5436, 342w5, 564s5, 6778, 8954, 567e5, 6578, 67584 ]
}]
下面是什么
preg_match("/(.*), (.*)/", $input_line, $output_array);
提前感谢:
编辑:完成下面的代码
PHP:
file.html:
<!DOCTYPE>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Index</title>
<script type="text/javascript">
var chart;
jQuery(document).ready(function() {
chart = new Highcharts.Chart({
series: [{
type: 'area',
name: 'product_data',
data: [ 5436, 342w5, 564s5, 6778, 8954, 567e5, 6578, 67584 ]
}]
});
});
</script>
<body>
</body>
</head>
您可以使用此模式进行操作,这不是更简单的方法,但它是一次性完成的,并且非常有效:
$pattern = "~
(?:
\G(?!\A), # anchored to the previous match
|
\A # anchored at the start of the string
[^s]*(?:s(?!eries:)[^s]*)* # all until 'series:'
series:
[^'d]*(?:'[^']*'[^'d]*|\Bd|d(?!ata:))* # all until 'data:'
data:
\s*\[
)
\s*\K # remove all on the left from the result
[^], ]+ # match the item
~x";
if (preg_match_all($pattern, $str, $m))
print_r($m[0]);
您可以使用一种更传统的方法,首先提取阵列,然后将其分解为项目:
$pattern = '~\bdata: \[\K[^]]+~';
if (preg_match($pattern, $str, $m)) {
$items = explode(', ', trim($m[0]));
print_r($items);
}
或者像这样:
preg_match('#data:\s\[(.*)\]#', $input_line, $output_array);
$data = explode(',', $output_array[1]);
print_r($data);
这不完全是你想要的答案,但这里是 数据是JSON编码的,但为了让PHP理解它,需要进行一些调整:
$:~/testscripts> cat js.php
<?php
// Raw data
$input_line=<<<STRING1
series: [{
type: 'area',
name: 'product_data',
data: [ 5436, 342w5, 564s5, 6778, 8954, 567e5, 6578, 67584 ]
}]
STRING1;
$data=json_decode($input_line,true);
echo "Decoded: ".print_r($data,true).PHP_EOL;
echo "---------------------".PHP_EOL;
// Adjust format
$d2=<<<STRING2
{"series": [{
"type":"area",
"name": "product_data",
"data": [ "5436", "342w5", "564s5", "6778", "8954", "567e5", "6578", "67584" ]
}]
}
STRING2;
$dd2=json_decode($d2,true);
echo "Decoded D2: ".print_r($dd2,true).PHP_EOL;
echo "---------------------".PHP_EOL;
// Reverse
$a=array(
'series'=>array(
array(
'type'=>'area',
'name'=>'product_data',
'data'=>array('5436','342w5','564s5', '6778', '8954', '567e5', '6578', '67584')
)
)
);
echo "Encoded: ".json_encode($a).PHP_EOL;
$series=$a['series'];
$dummy=reset($series); // return the first element of array
$data=$dummy['data'];
echo "Data: ".print_r($data,true).PHP_EOL;
可以看出,尽管$input_行和执行json_编码的结果相似,但只有调整后的原始数据工作正常
您需要调整$input_行,方法是将所有内容都包含在语音标记和not'中,并可能使用一组更简单的正则表达式在开始和结束处添加大括号,然后将其传递给json_解码函数,true返回一个数组。之后,应该是访问数组元素的简单情况
对不起,代码墙不是你想要的。我想我会添加另一个可能更容易的选项。或者可能不是你是如何得到这样一个字符串的?我使用了file\u get\u contents-然后点了tagsHmmmm。。。这看起来不像字符串。您的目标是从已知的HTML文件中提取JavaScript代码?是的,如果可能的话?
$:~/testscripts> cat js.php
<?php
// Raw data
$input_line=<<<STRING1
series: [{
type: 'area',
name: 'product_data',
data: [ 5436, 342w5, 564s5, 6778, 8954, 567e5, 6578, 67584 ]
}]
STRING1;
$data=json_decode($input_line,true);
echo "Decoded: ".print_r($data,true).PHP_EOL;
echo "---------------------".PHP_EOL;
// Adjust format
$d2=<<<STRING2
{"series": [{
"type":"area",
"name": "product_data",
"data": [ "5436", "342w5", "564s5", "6778", "8954", "567e5", "6578", "67584" ]
}]
}
STRING2;
$dd2=json_decode($d2,true);
echo "Decoded D2: ".print_r($dd2,true).PHP_EOL;
echo "---------------------".PHP_EOL;
// Reverse
$a=array(
'series'=>array(
array(
'type'=>'area',
'name'=>'product_data',
'data'=>array('5436','342w5','564s5', '6778', '8954', '567e5', '6578', '67584')
)
)
);
echo "Encoded: ".json_encode($a).PHP_EOL;
$series=$a['series'];
$dummy=reset($series); // return the first element of array
$data=$dummy['data'];
echo "Data: ".print_r($data,true).PHP_EOL;
$~/testScripts> php -f js.php
Decoded:
---------------------
Decoded D2: Array
(
[series] => Array
(
[0] => Array
(
[type] => area
[name] => product_data
[data] => Array
(
[0] => 5436
[1] => 342w5
[2] => 564s5
[3] => 6778
[4] => 8954
[5] => 567e5
[6] => 6578
[7] => 67584
)
)
)
)
---------------------
Encoded: {"series":[{"type":"area","name":"product_data","data":["5436","342w5","564s5","6778","8954","567e5","6578","67584"]}]}
Data: Array
(
[0] => 5436
[1] => 342w5
[2] => 564s5
[3] => 6778
[4] => 8954
[5] => 567e5
[6] => 6578
[7] => 67584
)