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@ 2016-02-12T00:26:30Z

<?php

$mystring = 'ABC';
var_dump(is_numeric($mystring[0]));

$mystring = '2ABC';
var_dump(is_numeric($mystring[0]));

$mystring = '';
var_dump(is_numeric($mystring[0]));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
is_numeric: documentation ( source)

preferences:dark modelive previewkey bindings

109.18 ms | 2129 KiB | 5 Q