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run code in 300+ PHP versions simultaneously
<?php $text1 = <<<EOD <tr class="aaa"> <td class="bbb"> <p> あああああ </p> </td> <tr> EOD; $text2 = <<<EOD <tr class="aaa"> <td class="bbb"> あああああ </td> <tr> EOD; $text1 = preg_replace_callback( '@(<br[^>]*+>)|\s*+</?+p>\s*+|(?<=<t(?:r|d))[^>]*+(?=>)@', function ($matches) { return isset($matches[1]) ? '、' : ''; }, $text1 ); $text2 = preg_replace_callback( '@(<br[^>]*+>)|</?+p>|(?<=<t(?:r|d))[^>]*+(?=>)@', function ($matches) { return isset($matches[1]) ? '、' : ''; }, $text2 ); var_dump($text1, $text2);
Output for git.master, git.master_jit, rfc.property-hooks
string(34) "<tr> <td>あああああ</td> <tr>" string(36) "<tr> <td> あああああ </td> <tr>"

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