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run code in 200+ php & hhvm versions
Bugs & Features
<?php echo $str = "ann@ibbeck.de,Petermann@ibbeck.de"; echo '<br>'; echo $str = preg_replace('/ann@ibbeck.de\b/i', 'kan', $str); echo '<br>'; echo $str = preg_replace('/Petermann@ibbeck.de\b/i', 'AP', $str); ?>
Output for 4.3.0 - 7.3.0rc4
ann@ibbeck.de,Petermann@ibbeck.de<br>kan,Petermkan<br>kan,Petermkan