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  1. <?php
  2.  
  3. $html = "<html>\n<body>\n<p><p>H<div>ello</div><script></script> <em>進&nbsp;&nbsp;&nbsp;撃の巨人</em>!</p>\nrandom code\nrandom code\n<p>Lorem <span>ipsum<span>.</p>\n</body>\n </html>";
  4. $begin = 'Hello     進撃の巨人!';
  5. $end = 'Lorem ipsum.';
  6. $begin = preg_replace_callback('~\s++(?!\z)|(\s++\z)~u', function ($m) { return !empty($m[1]) ? '' : ' '; }, $begin);
  7. $end = preg_replace_callback('~\s++(?!\z)|(\s++\z)~u', function ($m) { return !empty($m[1]) ? '' : ' '; }, $end);
  8. $begin_arr = preg_split('~(?=\X)~u', $begin, -1, PREG_SPLIT_NO_EMPTY);
  9. $end_arr = preg_split('~(?=\X)~u', $end, -1, PREG_SPLIT_NO_EMPTY);
  10. $reg = "(?s)(?:<[^<>]+>)?(?:&#?\\w+;)*\\s*" .  implode("", array_map(function($x, $k) use ($begin_arr) { return ($k < count($begin_arr) - 1 ? preg_quote($x, "~") . "(?:\s*(?:<[^<>]+>|&#?\\w+;))*" : preg_quote($x, "~"));}, $begin_arr, array_keys($begin_arr)))
  11.         . "(.*?)" . 
  12.         implode("", array_map(function($x, $k) use ($end_arr) { return ($k < count($end_arr) - 1 ? preg_quote($x, "~") . "(?:\s*(?:<[^<>]+>|&#?\\w+;))*" : preg_quote($x, "~"));}, $end_arr, array_keys($end_arr))); 
  13. //echo $reg .PHP_EOL;
  14. preg_match('~' . $reg . '~u', $html, $m);
  15. print_r($m[0]);
Success #stdin #stdout 0.02s 52472KB
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stdin
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Standard input is empty
stdout
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<p>H<div>ello</div><script></script> <em>進&nbsp;&nbsp;&nbsp;撃の巨人</em>!</p>
random code
random code
<p>Lorem <span>ipsum<span>.
https://ideone.com/BVumTS
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
secret

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