The falsy family
null, false, an empty array and "0" compared with ==, then one with ===.
<?phpecho var_export(null == false, true) . PHP_EOL;echo var_export([] == false, true) . PHP_EOL;echo var_export("0" == false, true) . PHP_EOL;echo var_export(null === false, true) . PHP_EOL;1. Predict the output
Tap the lines in the order you think they print.
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