3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = 0; if (!$foo) { print 'foo'; } $foo = ''; if (!$foo) { print 'foo'; } $foo = []; if (!$foo) { print 'foo'; } $foo = '0'; if (!$foo) { print 'foo'; }

This is an error 500

Value for `_results` contains invalid data `array`


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