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run code in 300+ PHP versions simultaneously
<?php $text = "[spoiler]\n\nTst.\n\nTestt.\n\nTEstst\nnTESTST\nESTET\n\n[/spoiler]"; $text = preg_replace_callback("(\[spoiler\](.*?)\[\/spoiler\])is", function($match){ $lines = explode("\n", str_rot13($match[1])); foreach ($lines as &$line) { if (!empty($line)) $line = "[spoiler]".$line."[/spoiler]"; } unset($line); $output = implode("\n",$lines); return $output; }, $text ); echo $text; ?>
Output for git.master, git.master_jit, rfc.property-hooks
[spoiler]Gfg.[/spoiler] [spoiler]Grfgg.[/spoiler] [spoiler]GRfgfg[/spoiler] [spoiler]aGRFGFG[/spoiler] [spoiler]RFGRG[/spoiler]

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