3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = uniqid(); function getNumber($val) { $lets = array(); foreach (range('a', 'z') as $let) { $lets[] = ("'`(" . $let . ")`'"); } $num = range(1, 26); $val = strtolower($val); $ret = preg_replace($lets, $num, $val); $ret = substr($ret, 0, 10); 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)
7.2.00.0000.01219.56
7.1.70.0030.00517.11
7.1.60.0120.01219.40
7.1.50.0100.01017.25
7.1.00.0030.03322.41
7.0.200.1040.01115.28
7.0.140.0000.07722.13
7.0.70.0100.08320.01
7.0.60.0100.08019.96
7.0.50.0000.05020.25
7.0.40.0070.08320.13
7.0.30.0200.07320.16
7.0.20.0100.07020.20
7.0.10.0130.08320.05
7.0.00.0100.08020.09
5.6.280.0000.07720.76
5.6.220.0230.07020.50
5.6.210.0100.04320.75
5.6.200.0130.06021.04
5.6.190.0130.04721.02
5.6.180.0130.05321.11
5.6.170.0070.06020.92
5.6.160.0000.06021.10
5.6.150.0100.05721.09
5.6.140.0100.07020.93
5.6.130.0030.05720.91
5.6.120.0070.08721.02
5.6.110.0070.05321.10
5.6.100.0130.08321.10
5.6.90.0130.08321.05
5.6.80.0030.08320.35
5.6.70.0170.07020.34
5.6.60.0100.08320.54
5.6.50.0100.06320.34
5.6.40.0100.07720.47
5.6.30.0170.07020.37
5.6.20.0070.04020.44
5.6.10.0030.08020.36
5.6.00.0100.08320.51
5.5.360.0000.09020.41
5.5.350.0100.07720.43
5.5.340.0100.04720.80
5.5.330.0100.06020.83
5.5.320.0070.07320.77
5.5.310.0130.07720.88
5.5.300.0030.04320.93
5.5.290.0100.06320.79
5.5.280.0100.04020.83
5.5.270.0100.08720.63
5.5.260.0100.09020.77
5.5.250.0070.07020.59
5.5.240.0100.07720.28
5.5.230.0070.08720.19
5.5.220.0100.07720.26
5.5.210.0130.08020.25
5.5.200.0130.07720.24
5.5.190.0130.07720.23
5.5.180.0170.06320.22
5.5.160.0070.06720.21
5.5.150.0100.07720.21
5.5.140.0200.06720.18
5.5.130.0170.07320.25
5.5.120.0070.07720.22
5.5.110.0200.06720.14
5.5.100.0070.07320.17
5.5.90.0070.07719.95
5.5.80.0000.04719.95
5.5.70.0170.07020.06
5.5.60.0170.04319.90
5.5.50.0070.03720.04
5.5.40.0070.03720.06
5.5.30.0030.04020.08
5.5.20.0100.07720.05
5.5.10.0000.08319.96
5.5.00.0100.04019.96
5.4.450.0100.07719.54
5.4.440.0070.08719.20
5.4.430.0100.04719.37
5.4.420.0130.07319.45
5.4.410.0070.06719.33
5.4.400.0030.07318.86
5.4.390.0170.07019.09
5.4.380.0100.07319.05
5.4.370.0000.05718.95
5.4.360.0130.07318.89
5.4.350.0130.07719.05
5.4.340.0030.08319.03
5.4.320.0030.08719.13
5.4.310.0070.04019.05
5.4.300.0030.07018.89
5.4.290.0100.08019.07
5.4.280.0070.07718.87
5.4.270.0070.07718.95
5.4.260.0070.06319.13
5.4.250.0030.05019.14
5.4.240.0030.05019.23
5.4.230.0130.07319.13
5.4.220.0070.04719.20
5.4.210.0000.08019.04
5.4.200.0100.07019.21
5.4.190.0000.08019.02
5.4.180.0030.07319.02
5.4.170.0130.06719.22
5.4.160.0100.07319.19
5.4.150.0100.04718.87
5.4.140.0030.07716.48
5.4.130.0000.08016.30
5.4.120.0070.06016.49
5.4.110.0130.06016.39
5.4.100.0070.08016.56
5.4.90.0100.07316.48
5.4.80.0030.08016.43
5.4.70.0100.07016.51
5.4.60.0100.06716.55
5.4.50.0100.05316.45
5.4.40.0030.05316.52
5.4.30.0100.07316.46
5.4.20.0070.07316.36
5.4.10.0030.07316.46
5.4.00.0030.05315.85
5.3.290.0100.07714.60
5.3.280.0200.06714.75
5.3.270.0070.06714.54
5.3.260.0100.05314.58
5.3.250.0070.03714.59
5.3.240.0100.07314.74
5.3.230.0030.08714.59
5.3.220.0030.08014.55
5.3.210.0100.08014.55
5.3.200.0130.07314.51
5.3.190.0100.06714.51
5.3.180.0070.08014.56
5.3.170.0070.08314.58
5.3.160.0030.08314.70
5.3.150.0070.07714.61
5.3.140.0170.06314.63
5.3.130.0170.06714.57
5.3.120.0030.07714.57
5.3.110.0070.05714.70
5.3.100.0030.08314.19
5.3.90.0030.08014.05
5.3.80.0070.07714.01
5.3.70.0070.06314.09
5.3.60.0000.04714.00
5.3.50.0000.05013.91
5.3.40.0030.07313.85
5.3.30.0100.07313.93
5.3.20.0030.08013.84
5.3.10.0070.04313.64
5.3.00.0000.05313.77
5.2.170.0000.06311.15
5.2.160.0130.05711.15
5.2.150.0030.06311.16
5.2.140.0030.04711.08
5.2.130.0070.06311.23
5.2.120.0000.04011.21
5.2.110.0070.05711.00
5.2.100.0000.06311.25
5.2.90.0030.06311.05
5.2.80.0100.05711.05
5.2.70.0000.06011.24
5.2.60.0070.06011.17
5.2.50.0130.05310.89
5.2.40.0070.03311.08
5.2.30.0000.06311.05
5.2.20.0130.05010.98
5.2.10.0000.06710.93
5.2.00.0130.05710.82
5.1.60.0070.05010.49
5.1.50.0070.05310.49
5.1.40.0130.04310.49
5.1.30.0000.05010.49
5.1.20.0070.05310.49
5.1.10.0070.04710.49
5.1.00.0030.06010.49
5.0.50.0000.04010.49
5.0.40.0130.03310.49
5.0.30.0070.04710.49
5.0.20.0070.04310.49
5.0.10.0030.03710.49
5.0.00.0070.06310.49
4.4.90.0000.03710.49
4.4.80.0000.03010.49
4.4.70.0000.02310.49
4.4.60.0070.03310.49
4.4.50.0100.03010.49
4.4.40.0070.05010.49
4.4.30.0070.02310.49
4.4.20.0000.03710.49
4.4.10.0070.03010.49
4.4.00.0000.05710.49
4.3.110.0000.03710.49
4.3.100.0070.03010.49
4.3.90.0070.03010.49
4.3.80.0000.05310.49
4.3.70.0000.03710.49
4.3.60.0000.03010.49
4.3.50.0030.03710.49
4.3.40.0000.05310.49
4.3.30.0070.03010.49
4.3.20.0070.03310.49
4.3.10.0000.03710.49
4.3.00.0000.03010.49

preferences:
39.71 ms | 400 KiB | 5 Q