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<?php  $pattern = '/[^\w]fox\s/';  if (preg_match($pattern, 'The quick brown fox jumps over the lazy dog'))    {    echo "'fox' is present...";    }    else    echo "'fox' is not present...";  ?>  - See more at: http://www.w3resource.com/php-exercises/php-regular-expression-exercises.php#sthash.nM2kC95Q.dpuf
Output for git.master, git.master_jit, rfc.property-hooks
<?php  $pattern = '/[^\w]fox\s/';  if (preg_match($pattern, 'The quick brown fox jumps over the lazy dog'))    {    echo "'fox' is present...";    }    else    echo "'fox' is not present...";  ?>  - See more at: http://www.w3resource.com/php-exercises/php-regular-expression-exercises.php#sthash.nM2kC95Q.dpuf

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