3v4l.org

run code in 300+ PHP versions simultaneously
<?php $start = microtime(true); $fn = @create_function('$a,$b', 'return log($a * $b);'); $v = 0; for ($i = 0; $i < 1000; $i++) $v += $fn($i, $i); echo("create_function: " . (microtime(true) - $start) . "\n"); $start = microtime(true); $v = 0; for ($i = 0; $i < 1000; $i++) $v += eval("return log($i * $i);"); echo("eval: " . (microtime(true) - $start) . "\n"); $start = microtime(true); $fn = fn($a, $b) => log($a * $b); $v = 0; for ($i = 0; $i < 1000; $i++) $v += $fn($i, $i); echo("arrow function: " . (microtime(true) - $start) . "\n"); $start = microtime(true); $fn = function ($a, $b) { return log($a * $b); }; $v = 0; for ($i = 0; $i < 1000; $i++) $v += $fn($i, $i); echo("anonymous function: " . (microtime(true) - $start) . "\n");

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
7.4.10.0120.00915.11
7.4.00.0070.01414.98
7.3.130.0040.01514.62
7.3.120.0100.00714.54
7.3.110.0040.01614.63
7.3.100.0040.01114.58
7.3.90.0120.00314.50
7.3.80.0040.00814.61
7.3.70.0060.00714.64
7.3.60.0080.00614.57
7.3.50.0080.00714.65
7.3.40.0040.01214.58
7.3.30.0080.00914.63
7.3.20.0020.01116.46
7.3.10.0050.01116.55
7.3.00.0070.00716.50
7.2.260.0030.01414.60
7.2.250.0040.01514.75
7.2.240.0000.01614.69
7.2.230.0070.01014.70
7.2.220.0070.00714.74
7.2.210.0030.01214.61
7.2.200.0060.00814.82
7.2.190.0080.00814.78
7.2.180.0060.01114.62
7.2.170.0050.01214.69
7.2.160.0080.00814.75
7.2.150.0030.00816.58
7.2.140.0120.00216.77
7.2.130.0100.00516.61
7.2.120.0090.01316.56
7.2.110.0080.00516.59
7.2.100.0080.00816.66
7.2.90.0070.00716.81
7.2.80.0020.01016.74
7.2.70.0080.00816.66
7.2.60.0080.00816.71
7.2.50.0030.01316.74
7.2.40.0080.00816.55
7.2.30.0030.01316.67
7.2.20.0090.00816.59
7.2.10.0080.00516.63
7.2.00.0110.00216.64
7.1.330.0070.00715.75
7.1.320.0050.00515.21
7.1.310.0050.00615.55
7.1.300.0050.00715.53
7.1.290.0070.01115.68
7.1.280.0090.00615.42
7.1.270.0050.00715.64
7.1.260.0050.01015.49
7.1.250.0090.00815.60
7.1.240.0000.01215.63
7.1.230.0070.00715.56
7.1.220.0000.01015.38
7.1.210.0100.00315.50
7.1.200.0070.00715.61
7.1.190.0000.01715.56
7.1.180.0040.00415.62
7.1.170.0040.01115.50
7.1.160.0040.00915.81
7.1.150.0000.01515.36
7.1.140.0040.01115.48
7.1.130.0090.00615.69
7.1.120.0090.00615.63
7.1.110.0030.00815.63
7.1.100.0130.00315.43
7.1.90.0060.00615.77
7.1.80.0120.00015.51
7.1.70.0030.01015.61
7.1.60.0000.01315.25
7.1.50.0070.00715.34
7.1.40.0030.01015.27
7.1.30.0070.00715.71
7.1.20.0000.01215.23
7.1.10.0000.01215.42
7.1.00.0070.00715.77

preferences:
26.3 ms | 403 KiB | 5 Q