Online PHP editor | output for aEvUM

@ 2014-10-28T18:03:02Z

<?php

$sum = null; // global variable

function outer() {
  global $sum;
  $hundred_more = 100;
  $sum = function ($a, $b) use ($hundred_more) {
    return $a + $b + (++$hundred_more);
  };
  echo $hundred_more;
}
outer(); // define sum at the global scope and print 100
echo($sum(5, 10)); // 116
echo($sum(5, 10)); // 117
outer(); // redefine sum at the global scope and print 100
echo($sum(5, 10)); // 116
echo($sum(5, 10)); // 117

Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: 100116116100116116
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 in /in/aEvUM on line 8
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 in /in/aEvUM on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/aEvUM on line 8
Process exited with code 255.

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