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run code in 150+ php & hhvm versions
Bugs & Features
<?php $test = ['07511 111111', '+447511 111111', '+44 (0) 7511 111111', '07211 111111' '3749853857', '0712121211233']; foreach ($test as $input) { //step 1 - reduce it to digits: preg_match_all('([\+]{0,1}[^\(\) ][0-9]+)', $input, $digits); $digits = implode($digits[0]); //now for step 2.. start by removing +44 and replacing it with 0 if (substr($digits, 0, 3) == '+44') { $digits = str_replace('+44', '0', $digits); } //by this point we should have just a UK-style number, but we must validate it: if ((substr($digits, 2, 1) > 3) && strlen($digits) == 11) { //valid UK mobile number! echo "valid UK mobile number $digits"; } }
Output for 5.4.0 - 5.4.30
Parse error: syntax error, unexpected ''3749853857'' (T_CONSTANT_ENCAPSED_STRING), expecting ']' in /in/ZIgO7 on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '[' in /in/ZIgO7 on line 3
Process exited with code 255.