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@ 2015-10-07T09:09:10Z

<?php

function test($tel)
{
   return preg_match('^(\+44\s?7\d{3}|\(?07\d{3}\)?)\s?\d{3}\s?\d{3}$') === false;   
}

var_dump(test('0204567876'));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
preg_match: documentation ( source)

preferences:dark modelive preview

59.53 ms | 402 KiB | 5 Q