3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = uniqid(time()); function getNumber($val) { $lets = array(); foreach (range('a', 'z') as $let) { $lets[] = ("'`" . $let . "`is'"); } var_dump($lets);die(); $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)
7.1.70.0040.00417.02
7.1.60.0150.01119.17
7.1.50.0180.00716.95
7.1.00.0030.07322.33
7.0.200.0030.00716.63
7.0.140.0030.07722.10
7.0.100.0070.04719.91
7.0.90.0100.06720.14
7.0.80.0000.08719.88
7.0.70.0070.08020.04
7.0.60.0170.08019.98
7.0.50.0130.04720.27
7.0.40.0170.07720.11
7.0.30.0170.07020.07
7.0.20.0070.08720.14
7.0.10.0100.08320.10
7.0.00.0130.04020.14
5.6.280.0030.07320.91
5.6.250.0130.07020.73
5.6.240.0100.07720.69
5.6.230.0130.07720.66
5.6.220.0100.07320.74
5.6.210.0070.08720.75
5.6.200.0200.05721.07
5.6.190.0130.07021.04
5.6.180.0100.05321.11
5.6.170.0100.08021.05
5.6.160.0200.07021.04
5.6.150.0030.09021.11
5.6.140.0070.08321.02
5.6.130.0030.08321.13
5.6.120.0070.08321.17
5.6.110.0100.08321.02
5.6.100.0000.09720.94
5.6.90.0200.04321.05
5.6.80.0030.08720.39
5.6.70.0100.04320.39
5.6.60.0230.07020.39
5.6.50.0070.07720.46
5.6.40.0030.07720.40
5.6.30.0130.07720.37
5.6.20.0030.05020.46
5.6.10.0100.07320.36
5.6.00.0130.07020.35
5.5.380.0070.07720.41
5.5.370.0130.08020.37
5.5.360.0100.08320.35
5.5.350.0130.06720.48
5.5.340.0100.08720.90
5.5.330.0170.06720.94
5.5.320.0130.07720.79
5.5.310.0130.07720.86
5.5.300.0030.09020.86
5.5.290.0070.08320.76
5.5.280.0100.05720.78
5.5.270.0130.07320.77
5.5.260.0070.08020.79
5.5.250.0100.07720.57
5.5.240.0070.08020.25
5.5.230.0070.08020.26
5.5.220.0070.04720.11
5.5.210.0070.07720.14
5.5.200.0100.05020.14
5.5.190.0070.04720.08
5.5.180.0030.07320.25
5.5.160.0030.04720.24
5.5.150.0130.07720.23
5.5.140.0030.08020.21
5.5.130.0030.09020.26
5.5.120.0100.07720.25
5.5.110.0170.05020.27
5.5.100.0000.04320.15
5.5.90.0130.07720.16
5.5.80.0130.07320.04
5.5.70.0100.06020.07
5.5.60.0070.07020.11
5.5.50.0030.08020.05
5.5.40.0070.07720.11
5.5.30.0130.06720.06
5.5.20.0030.05320.03
5.5.10.0030.08720.05
5.5.00.0030.08319.97
5.4.450.0030.08319.42
5.4.440.0100.03719.45
5.4.430.0070.05019.41
5.4.420.0070.08019.37
5.4.410.0170.07019.07
5.4.400.0130.07019.03
5.4.390.0200.06319.05
5.4.380.0000.08019.21
5.4.370.0170.06319.22
5.4.360.0070.07719.03
5.4.350.0200.06019.23
5.4.340.0030.05319.03
5.4.320.0070.07719.18
5.4.310.0100.07018.85
5.4.300.0030.07319.04
5.4.290.0030.05719.13
5.4.280.0070.07719.02
5.4.270.0230.05719.09
5.4.260.0070.03719.04
5.4.250.0030.07018.84
5.4.240.0100.04018.99
5.4.230.0170.07018.94
5.4.220.0030.07319.22
5.4.210.0100.07318.86
5.4.200.0100.06319.02
5.4.190.0100.04018.89
5.4.180.0070.07319.23
5.4.170.0000.07719.02
5.4.160.0000.06019.03
5.4.150.0100.07019.14
5.4.140.0070.05716.45
5.4.130.0100.07016.33
5.4.120.0100.07016.49
5.4.110.0070.06716.39
5.4.100.0030.04716.43
5.4.90.0070.07016.32
5.4.80.0030.04016.49
5.4.70.0070.06716.32
5.4.60.0170.06316.31
5.4.50.0130.05016.58
5.4.40.0030.05316.38
5.4.30.0070.07316.36
5.4.20.0130.06016.32
5.4.10.0100.05016.45
5.4.00.0100.05015.78
5.3.290.0030.07714.59
5.3.280.0000.08714.60
5.3.270.0030.07714.68
5.3.260.0130.07014.70
5.3.250.0070.07714.67
5.3.240.0100.07014.55
5.3.230.0100.06014.71
5.3.220.0100.05014.58
5.3.210.0070.08014.63
5.3.200.0170.06314.70
5.3.190.0100.07314.68
5.3.180.0000.05314.54
5.3.170.0000.04314.53
5.3.160.0030.08014.68
5.3.150.0100.07314.70
5.3.140.0100.06014.65
5.3.130.0100.07014.52
5.3.120.0100.07014.60
5.3.110.0230.04014.52
5.3.100.0000.08714.16
5.3.90.0030.08014.07
5.3.80.0070.05013.94
5.3.70.0100.07014.12
5.3.60.0030.07314.09
5.3.50.0070.06714.00
5.3.40.0030.08014.01
5.3.30.0030.08014.04
5.3.20.0100.06713.76
5.3.10.0070.06013.67
5.3.00.0030.06713.70
5.2.170.0030.06311.28
5.2.160.0000.06311.28
5.2.150.0000.05311.28
5.2.140.0000.04011.28
5.2.130.0100.05711.28
5.2.120.0070.04011.28
5.2.110.0000.07011.28
5.2.100.0030.05711.28
5.2.90.0100.06011.28
5.2.80.0100.05711.28
5.2.70.0070.06011.28
5.2.60.0130.04711.28
5.2.50.0030.05711.28
5.2.40.0030.03711.28
5.2.30.0030.04011.28
5.2.20.0100.06311.28
5.2.10.0130.05011.28
5.2.00.0030.02711.28
5.1.60.0070.04011.28
5.1.50.0100.05011.28
5.1.40.0000.03311.28
5.1.30.0070.05311.28
5.1.20.0070.04711.28
5.1.10.0030.03011.28
5.1.00.0100.04711.28
5.0.50.0000.04711.28
5.0.40.0030.04311.28
5.0.30.0070.05711.28
5.0.20.0100.03011.28
5.0.10.0000.03011.28
5.0.00.0000.04011.28
4.4.90.0100.03011.28
4.4.80.0030.03711.28
4.4.70.0030.03311.28
4.4.60.0000.03711.28
4.4.50.0030.03711.28
4.4.40.0070.03011.28
4.4.30.0000.03011.28
4.4.20.0000.02311.28
4.4.10.0030.01711.28
4.4.00.0030.03011.28
4.3.110.0030.03711.28
4.3.100.0030.03011.28
4.3.90.0030.02711.28
4.3.80.0000.05011.28
4.3.70.0100.02711.28
4.3.60.0130.02311.28
4.3.50.0030.03311.28
4.3.40.0030.05011.28
4.3.30.0000.03711.28
4.3.20.0000.03711.28
4.3.10.0070.02711.28
4.3.00.0000.02311.28

preferences:
39.58 ms | 401 KiB | 5 Q