Online PHP editor | output for ecbX4

@ 2015-08-26T11:05:34Z

<?php

// The original function
function a($i){$e=microtime(1)+$i;while(microtime(1)<$e);}

// Use 'for' instead of 'while'
function b($i){for($e=microtime(1)+$i;microtime(1)<$e;);}

// Extract 'microtime' into a variable; requires error_reporting(0) to suppress the notice
function c($i){for($f=microtime,$e=$f(1)+$i;$f(1)<$e;);}

// Cram the initialization of $f into its first use
// PHP 7 only; it doesn't compile on older versions
function d($i){for($e=($f=microtime)(1)+$i;$f(1)<$e;);}

Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.25, 7.3.0 - 7.3.12, 7.4.0
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, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28: Parse error: syntax error, unexpected '(', expecting ';' in /in/ecbX4 on line 14
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 '(', expecting ';' in /in/ecbX4 on line 14
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `';'' in /in/ecbX4 on line 14
Process exited with code 255.

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