- var_dump: documentation ( source)
- date: documentation ( source)
- in_array: documentation ( source)
<?php
$array = ['CATS','DOGS'];
if(in_array(0, $array) === true){
echo "found zero!\n";
}
var_dump(DateTime::ISO8601,DateTime::ATOM,date(DateTime::ISO8601,0),date(DateTime::ATOM,0));