3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = uniqid(time()); function getNumber($val) { $let = range('a', 'z'); var_dump($let);die(); for ($i = 0; $i < count($let); $i++) { $let[$i] = ("'`" . $let[$i] . "`is'"); } $num = range(1, 26); $val = strtolower($val); var_dump($let);die(); $ret = preg_replace($let, $num, $val); $ret = substr(0, 10, $ret); return $ret; } $b = getNumber($a); echo "<pre>"; var_dump($b);

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)
7.1.70.0050.00517.10
7.1.60.0090.01619.40
7.1.50.0040.00816.63
7.1.00.0030.03322.54
7.0.200.0000.01316.63
7.0.140.0030.07322.00
7.0.100.0100.04719.94
7.0.90.0170.08019.97
7.0.80.0200.05719.98
7.0.70.0030.06719.98
7.0.60.0300.06319.99
7.0.50.0300.08320.32
7.0.40.0100.08320.15
7.0.30.0070.05320.04
7.0.20.0030.05020.08
7.0.10.0070.08320.03
7.0.00.0130.07320.07
5.6.250.0030.08020.63
5.6.240.0130.06320.58
5.6.230.0130.04020.63
5.6.220.0100.08020.68
5.6.210.0200.07320.64
5.6.200.0100.08321.04
5.6.190.0100.08021.04
5.6.180.0130.06320.95
5.6.170.0070.08321.18
5.6.160.0070.08321.04
5.6.150.0100.04320.96
5.6.140.0100.06321.02
5.6.130.0200.07321.08
5.6.120.0070.04721.14
5.6.110.0070.08321.06
5.6.100.0100.08021.09
5.6.90.0070.06021.02
5.6.80.0130.07320.50
5.6.70.0030.04320.40
5.6.60.0070.04720.29
5.6.50.0100.07720.33
5.6.40.0030.08320.32
5.6.30.0030.05020.35
5.6.20.0030.05320.30
5.6.10.0130.05320.38
5.6.00.0030.04020.40
5.5.380.0130.06720.35
5.5.370.0230.06720.52
5.5.360.0200.07020.44
5.5.350.0170.05720.46
5.5.340.0170.06720.83
5.5.330.0030.05720.81
5.5.320.0200.07320.95
5.5.310.0070.08020.86
5.5.300.0170.06320.76
5.5.290.0170.07720.91
5.5.280.0170.04020.78
5.5.270.0130.08020.88
5.5.260.0170.06720.63
5.5.250.0070.08020.69
5.5.240.0130.07720.25
5.5.230.0030.07020.15
5.5.220.0100.04320.30
5.5.210.0030.04020.29
5.5.200.0070.07720.19
5.5.190.0100.05320.28
5.5.180.0000.06320.23
5.5.160.0100.08320.15
5.5.150.0030.08720.12
5.5.140.0100.07020.11
5.5.130.0000.06720.22
5.5.120.0100.05719.99
5.5.110.0070.05720.11
5.5.100.0070.06719.98
5.5.90.0030.07720.16
5.5.80.0070.07720.11
5.5.70.0070.04720.15
5.5.60.0070.07020.05
5.5.50.0070.05020.15
5.5.40.0130.06320.09
5.5.30.0100.06720.08
5.5.20.0100.04320.11
5.5.10.0170.04020.04
5.5.00.0030.05720.11
5.4.450.0070.08319.51
5.4.440.0030.08319.39
5.4.430.0100.05019.45
5.4.420.0070.06719.45
5.4.410.0030.05319.33
5.4.400.0070.07319.09
5.4.390.0130.07019.04
5.4.380.0030.08018.90
5.4.370.0070.08019.23
5.4.360.0070.04319.23
5.4.350.0100.03718.90
5.4.340.0030.04019.14
5.4.320.0130.06718.85
5.4.310.0100.07019.23
5.4.300.0030.07019.09
5.4.290.0070.07319.13
5.4.280.0100.06719.12
5.4.270.0000.04319.21
5.4.260.0070.06018.84
5.4.250.0030.08319.13
5.4.240.0100.07019.02
5.4.230.0030.04319.14
5.4.220.0070.06718.84
5.4.210.0070.04319.04
5.4.200.0070.04318.90
5.4.190.0070.07718.87
5.4.180.0200.05319.12
5.4.170.0070.07319.03
5.4.160.0100.04319.02
5.4.150.0030.05019.01
5.4.140.0030.05016.43
5.4.130.0100.06716.45
5.4.120.0030.04316.34
5.4.110.0070.07316.36
5.4.100.0070.05016.27
5.4.90.0130.04316.39
5.4.80.0070.07016.45
5.4.70.0100.03316.47
5.4.60.0030.03716.46
5.4.50.0130.06716.47
5.4.40.0000.04716.46
5.4.30.0000.07716.44
5.4.20.0070.05016.36
5.4.10.0030.05016.45
5.4.00.0030.03715.71
5.3.290.0030.04314.59
5.3.280.0100.06714.65
5.3.270.0130.06714.63
5.3.260.0030.04714.57
5.3.250.0100.07314.66
5.3.240.0100.06714.72
5.3.230.0030.08014.53
5.3.220.0130.06014.68
5.3.210.0070.06714.64
5.3.200.0100.04314.52
5.3.190.0000.05014.64
5.3.180.0030.04714.51
5.3.170.0100.05714.66
5.3.160.0070.08014.62
5.3.150.0070.05014.52
5.3.140.0100.06714.61
5.3.130.0070.06714.52
5.3.120.0030.06014.50
5.3.110.0070.03714.59
5.3.100.0100.05314.18
5.3.90.0100.03313.94
5.3.80.0100.06714.05
5.3.70.0100.05713.95
5.3.60.0070.03313.89
5.3.50.0200.05714.02
5.3.40.0030.04014.06
5.3.30.0070.03313.79
5.3.20.0030.03713.69
5.3.10.0030.06013.56
5.3.00.0000.07013.76
5.2.170.0000.04011.31
5.2.160.0030.03011.31
5.2.150.0000.04711.31
5.2.140.0070.03011.31
5.2.130.0000.04011.31
5.2.120.0030.03711.31
5.2.110.0070.05011.31
5.2.100.0100.06011.31
5.2.90.0100.05011.31
5.2.80.0030.04711.31
5.2.70.0070.03311.31
5.2.60.0030.03311.31
5.2.50.0130.05311.31
5.2.40.0070.05711.31
5.2.30.0030.06311.31
5.2.20.0030.03011.31
5.2.10.0030.03311.31
5.2.00.0070.05711.31
5.1.60.0070.03311.31
5.1.50.0030.03011.31
5.1.40.0070.02311.31
5.1.30.0000.03011.31
5.1.20.0000.02711.31
5.1.10.0030.02711.31
5.1.00.0030.02711.31
5.0.50.0000.02711.31
5.0.40.0030.04011.31
5.0.30.0000.03711.31
5.0.20.0030.02011.31
5.0.10.0070.02711.31
5.0.00.0030.03011.31
4.4.90.0000.04011.31
4.4.80.0030.01711.31
4.4.70.0070.01311.31
4.4.60.0000.01711.31
4.4.50.0030.01311.31
4.4.40.0030.05711.31
4.4.30.0030.02711.31
4.4.20.0000.02011.31
4.4.10.0000.01711.31
4.4.00.0070.02311.31
4.3.110.0100.02011.31
4.3.100.0030.02711.31
4.3.90.0030.02711.31
4.3.80.0000.04011.31
4.3.70.0000.01711.31
4.3.60.0000.02711.31
4.3.50.0070.02711.31
4.3.40.0000.03711.31
4.3.30.0030.01311.31
4.3.20.0000.02011.31
4.3.10.0000.02711.31
4.3.00.0070.01711.31

preferences:
36.99 ms | 400 KiB | 5 Q