- var_dump: documentation ( source)
<?php
echo "Numeric strings will be converted into an integer\n";
var_dump(array(
1 => 1,
'1' => '1',
's1' => 's1',
));
echo "Bolean TRUE will be converted into the integer 1:\n";
echo "Bolean FALSE will be converted into the integer 0:\n";
var_dump(array(
0 => 0,
1 => 1,
true => true,
false => false,
));