Online PHP editor | output for t1LlD

@ 2026-04-08T18:39:25Z

<?php

$falses = [
    'aFalseBool' => false,
    'aFalseString' => 'false',
    'aNull' => null,
    'zero' => 0,
    'emptyString' => '',
];

$truths = [
    'aTrueBool' => true,
    'aTrueString' => 'true',
    'non-zero' => 42,
    'anyString' => 'anystring',
];

echo "These should be false:" . PHP_EOL;
foreach($falses as $key => $item) {
    if ((bool) $item === false) {
        printf("%s is false\n", $key);
    } else {
        printf("%s is not false\n", $key);
    }
}

echo "These should be true:" . PHP_EOL;
foreach($truths as $key => $item) {
    if ((bool) $item === true) {
        printf("%s is true\n", $key);
    } else {
        printf("%s is not true\n", $key);
    }
}

Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3: These should be false: aFalseBool is false aFalseString is not false aNull is false zero is false emptyString is false These should be true: aTrueBool is true aTrueString is true non-zero is true anyString is true
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/t1LlD on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected '[' in /in/t1LlD on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/t1LlD on line 3
Process exited with code 255.

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