Online PHP editor | output for hoefb

@ 2016-09-30T15:35:41Z

<?php

$condition = ['one', 'two'];
$key = key($condition);
echo "The key is: " . $key . PHP_EOL;

echo 'Without strict comparison:' . PHP_EOL;
var_dump(in_array($key, ['a', 'b']));

echo 'With strict comparison:' . PHP_EOL;
var_dump(in_array($key, ['a', 'b'], true));

echo 'Non-strict comparison of string to zero:' . PHP_EOL;
var_dump(0 == 'a');

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.26, 8.2.0 - 8.2.13, 8.3.0: The key is: 0 Without strict comparison: bool(false) With strict comparison: bool(false) Non-strict comparison of string to zero: bool(false)
Output for 5.6.0 - 5.6.26, 7.0.0 - 7.0.3, 7.0.5 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33: The key is: 0 Without strict comparison: bool(true) With strict comparison: bool(false) Non-strict comparison of string to zero: bool(true)
Output for 7.0.4: Process exited with code 137.

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