- var_dump: documentation ( source)
<?php
// Pick a version of PHP, then try to predict this output.
var_dump( 9223372036854775801 == 9223372036854775809);
var_dump( '9223372036854775801' == '9223372036854775809');
var_dump( '=' + '9223372036854775801' == '=' + '9223372036854775809');
var_dump( '=' . '9223372036854775801' == '=' . '9223372036854775809');
?>