[정규표현식]연락처에 하이픈 넣기

	<?php
	//$mobile = '0101234567';
	$mobile = '01012345678';
	echo preg_replace('/(0(?:2|[0-9]{2}))([0-9]+)([0-9]{4}$)/', '\\1-\\2-\\3', $mobile);

view raw regular_expression2.php hosted with ❤ by GitHub

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