PHP在脚本标记之间获取值

Question

how to get value between the script tag using php scrapping.

$homepage = file_get_contents('http://www.example.com/');

//$homepage
<script type="application/ld+json">
  //FETCH ME
/script>

Answer 1

This seems like the answer you need here, Get content between two strings PHP

The second answer seems easiest:

$out = file_get_contents('http://www.example.com/');
$start = "<script ...>"; // replace ... with exact other text you are maching
$end = "</script>";
$startsAt = strpos($out, $start) + strlen($start);
$endsAt = strpos($out, $end, $startsAt);
$result = substr($out, $startsAt, $endsAt - $startsAt);

with $result being the as it says result of the content between $start and $end

For multiple instances, just delete the first occurance from $out and repeat:

$out = str_replace($start.$result.$end,"",$out);

The first occurance is removed, so you can retreive the second occurance. But sure, there may be a more simpler way to get all occurances, not just this.

$startsAt = strpos($out, $start) + strlen($start);
$endsAt = strpos($out, $end, $startsAt);
$result = substr($out, $startsAt, $endsAt - $startsAt);