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<?php $str = preg_replace('/(\w)(\W*)(\w)?/e', "strtoupper('$1').strtolower('$3')", 'test example.Hello World'); echo $str; ?>
Output for git.master, git.master_jit, rfc.property-hooks
Warning: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead in /in/NCk2Z on line 2

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