Online PHP editor | output for Eb8bc

@ 2017-07-03T15:42:23Z

<?php

if (defined('HHVM_VERSION')) {
   exit('*HHVM skipped*');
}

function myErrorHandler($errno, $errstr, $errfile, $errline)
{
    if ($errno == E_NOTICE && in_array($errstr, array(
        'Undefined variable: undefined',
        'Undefined variable:  undefined',
    ), true)) {
        echo "\n";
        echo "Caught a Notice: Undefined variable: undefined in $errfile on line $errline\n";
        return true;
    }

    if ($errno == E_WARNING && in_array($errstr, array(
        'key() expects parameter 1 to be array, null given',
        'key(): Passed variable is not an array or object',
        'key() [http://www.php.net/function.key]: Passed variable is not an array or object',
    ), true)) {
        echo "\n";
        echo "(caught the warning about null not being an array in $errfile on line $errline)\n";
        return true;
    }

    return false;
}

set_error_handler('myErrorHandler');

// The following line will emit a notice if key() takes its parameter by value
key($undefined);

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.4.16, 8.5.0 - 8.5.1: Warning: Undefined variable $undefined in /in/Eb8bc on line 34 Fatal error: Uncaught TypeError: key(): Argument #1 ($array) must be of type array, null given in /in/Eb8bc:34 Stack trace: #0 /in/Eb8bc(34): key(NULL) #1 {main} thrown in /in/Eb8bc on line 34
Process exited with code 255.
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 4.4.1, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: Caught a Notice: Undefined variable: undefined in /in/Eb8bc on line 34 (caught the warning about null not being an array in /in/Eb8bc on line 34)
Output for 4.3.0 - 4.3.11, 4.4.0, 4.4.2 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30: (caught the warning about null not being an array in /in/Eb8bc on line 34)

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