- strtr: documentation ( source)
- print_r: documentation ( source)
- var_export: documentation ( source)
- explode: documentation ( source)
<?php
var_export(strtr('pehrova@gymnacel.cz, nosek@gymnacel.cz', " \t\r\n,", ';'));
var_export(explode(';', strtr('pehrova@gymnacel.cz, nosek@gymnacel.cz', " \t\r\n,", ';')));
print_r("," === ",");