Online PHP editor | output for F5Y6t

@ 2015-02-25T16:34:12Z

<?php

// Example 1 -- Unpacking the array to do work on it
array_map(function ($x) {
    $first_name = $x[0];
    $last_name = $x[1];

    // Do important work here with first_name and last_name...
    // But $first_name and $last_name are scoped to this function

    // See the second example for how we'd inject an anonymous function to operate with $first_name and $last_name
}, [
    ['John',  'Galt'],
    ['Howard', 'Roark'],
]);


// Example 2 -- Separation of input setup and behavior
$behavior = function ($first_name, $last_name) {
    var_dump('Doing hard work!', $first_name, $last_name);
};

array_map(function ($x) use ($behavior) {
    $first_name = $x[0];
    $last_name = $x[1];

    // $behavior is invoked using our unpacked arguments
    $behavior($first_name, $last_name);
}, [
    ['John',  'Galt'],
    ['Howard', 'Roark'],
]);

Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 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, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13: string(16) "Doing hard work!" string(4) "John" string(4) "Galt" string(16) "Doing hard work!" string(6) "Howard" string(5) "Roark"
Output for 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/F5Y6t on line 12
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/F5Y6t on line 4
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 T_FUNCTION, expecting ')' in /in/F5Y6t on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `')'' in /in/F5Y6t on line 4
Process exited with code 255.

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