- var_dump: documentation ( source)
<?php
function doArrayStuff(array $stuff = null) {
// do stuff
// If this worked without fatal erroring, echo worked!
echo 'worked!';
}
function doFileStuff(SplFileInfo $finfo = null) {
// do stuff
// If this worked without fatal erroring, echo worked!
var_dump($finfo instanceof SplFileInfo);
echo 'worked!';
}
doArrayStuff(null);
doFileStuff(new SplFileInfo(""));