- var_dump: documentation ( source)
<?php
// Predict this output. I doubt you'll get it correct for any version of PHP you are working on.
var_dump( '9223372036854775807' == '9223372036854775808');
var_dump( '=' + '9223372036854775807' == '=' + '9223372036854775808');
var_dump( '=' . '9223372036854775807' == '=' . '9223372036854775808');
?>