3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = uniqid(); function getNumber($val) { $lets = array(); foreach (range('a', 'z') as $let) { $lets[] = ("'`" . $let . "`is'"); } var_dump($lets);die(); $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)
7.1.70.0030.00617.26
7.1.60.0060.01919.08
7.1.50.0030.01916.99
7.1.00.0030.07322.31
7.0.200.0030.00716.52
7.0.140.0070.07022.07
7.0.80.0430.03719.99
7.0.70.0430.07719.90
7.0.60.0430.04019.94
7.0.50.0370.04320.40
7.0.40.0070.06020.04
7.0.30.0030.04720.08
7.0.20.0100.03020.10
7.0.10.0070.04320.09
7.0.00.0000.05020.12
5.6.280.0070.07021.15
5.6.230.0100.05020.69
5.6.220.0070.08320.61
5.6.210.0000.07020.57
5.6.200.0030.04321.04
5.6.190.0130.08321.01
5.6.180.0000.04321.08
5.6.170.0070.03721.12
5.6.160.0100.03721.04
5.6.150.0030.04021.04
5.6.140.0070.03721.05
5.6.130.0000.04321.08
5.6.120.0030.04321.04
5.6.110.0030.03721.00
5.6.100.0100.03021.00
5.6.90.0030.03321.09
5.6.80.0030.03320.35
5.6.70.0100.02720.43
5.6.60.0000.03720.54
5.6.50.0070.03020.45
5.6.40.0100.03720.46
5.6.30.0130.03320.30
5.6.20.0030.03320.41
5.6.10.0070.03020.39
5.6.00.0030.03320.36
5.5.370.0130.07020.55
5.5.360.0100.06320.36
5.5.350.0030.05320.42
5.5.340.0070.07020.76
5.5.330.0130.07020.94
5.5.320.0000.04320.65
5.5.310.0070.03320.80
5.5.300.0030.04320.64
5.5.290.0000.03720.83
5.5.280.0070.05020.80
5.5.270.0030.04020.89
5.5.260.0030.04720.77
5.5.250.0030.03720.74
5.5.240.0030.03020.14
5.5.230.0070.04020.28
5.5.220.0030.03320.09
5.5.210.0030.04020.27
5.5.200.0070.03720.28
5.5.190.0000.03720.21
5.5.180.0070.03020.08
5.5.160.0030.03320.21
5.5.150.0000.03320.23
5.5.140.0070.03320.26
5.5.130.0070.03019.95
5.5.120.0000.03320.27
5.5.110.0030.03320.12
5.5.100.0030.03019.98
5.5.90.0000.03720.16
5.5.80.0000.03720.13
5.5.70.0030.03720.00
5.5.60.0100.04020.14
5.5.50.0000.04320.06
5.5.40.0030.04320.09
5.5.30.0070.03720.11
5.5.20.0070.06720.08
5.5.10.0100.08019.98
5.5.00.0070.04020.03
5.4.450.0070.03019.54
5.4.440.0030.04319.54
5.4.430.0070.04019.17
5.4.420.0030.04319.46
5.4.410.0000.04319.29
5.4.400.0000.03319.05
5.4.390.0000.03319.14
5.4.380.0030.03019.09
5.4.370.0070.02718.91
5.4.360.0000.03718.88
5.4.350.0000.03319.13
5.4.340.0070.03319.09
5.4.320.0030.03718.89
5.4.310.0130.02719.04
5.4.300.0030.04019.11
5.4.290.0100.02719.12
5.4.280.0070.03319.23
5.4.270.0070.03018.90
5.4.260.0030.03018.85
5.4.250.0100.02718.84
5.4.240.0070.03018.87
5.4.230.0130.07019.13
5.4.220.0100.06319.04
5.4.210.0030.04319.03
5.4.200.0000.04019.04
5.4.190.0100.03718.84
5.4.180.0070.04319.22
5.4.170.0030.07719.11
5.4.160.0100.03719.10
5.4.150.0070.04018.88
5.4.140.0000.04316.42
5.4.130.0000.07016.41
5.4.120.0030.03016.36
5.4.110.0070.02716.41
5.4.100.0030.03716.32
5.4.90.0000.03316.52
5.4.80.0030.03316.37
5.4.70.0030.06316.40
5.4.60.0100.03016.41
5.4.50.0100.05316.37
5.4.40.0030.06716.42
5.4.30.0000.03316.47
5.4.20.0000.05716.40
5.4.10.0030.03016.45
5.4.00.0100.02315.86
5.3.290.0030.03014.69
5.3.280.0100.06314.61
5.3.270.0070.07314.54
5.3.260.0070.04714.66
5.3.250.0000.08014.66
5.3.240.0130.05314.67
5.3.230.0000.04314.70
5.3.220.0100.02714.63
5.3.210.0030.07314.57
5.3.200.0030.07714.59
5.3.190.0030.03014.57
5.3.180.0030.07714.54
5.3.170.0070.06014.70
5.3.160.0000.05714.59
5.3.150.0070.04714.54
5.3.140.0100.03314.55
5.3.130.0030.04714.64
5.3.120.0070.06714.61
5.3.110.0070.05714.58
5.3.100.0030.03014.04
5.3.90.0000.03313.95
5.3.80.0070.05314.02
5.3.70.0130.05313.95
5.3.60.0030.07014.02
5.3.50.0100.05713.94
5.3.40.0070.05713.96
5.3.30.0000.03713.88
5.3.20.0030.05713.68
5.3.10.0100.06713.71
5.3.00.0000.04313.66
5.2.170.0030.03012.34
5.2.160.0070.02012.34
5.2.150.0030.03312.34
5.2.140.0030.03012.34
5.2.130.0070.02012.34
5.2.120.0000.05712.34
5.2.110.0000.03012.34
5.2.100.0000.02712.34
5.2.90.0130.04012.34
5.2.80.0030.04012.34
5.2.70.0030.02312.34
5.2.60.0100.02012.34
5.2.50.0100.01712.34
5.2.40.0070.05012.34
5.2.30.0100.05012.34
5.2.20.0070.05712.34
5.2.10.0070.06312.34
5.2.00.0030.04712.34
5.1.60.0070.05312.34
5.1.50.0030.02312.34
5.1.40.0100.01712.34
5.1.30.0100.04012.34
5.1.20.0000.04712.34
5.1.10.0070.05012.34
5.1.00.0070.03312.34
5.0.50.0130.03712.34
5.0.40.0070.04312.34
5.0.30.0000.03312.34
5.0.20.0000.05012.34
5.0.10.0000.02012.34
5.0.00.0030.02312.34
4.4.90.0070.01012.34
4.4.80.0000.01312.34
4.4.70.0030.03712.34
4.4.60.0000.02712.34
4.4.50.0070.03012.34
4.4.40.0000.03712.34
4.4.30.0030.01312.34
4.4.20.0000.01312.34
4.4.10.0000.03712.34
4.4.00.0000.06012.34
4.3.110.0100.01712.34
4.3.100.0000.01312.34
4.3.90.0030.01012.34
4.3.80.0000.02012.34
4.3.70.0100.03012.34
4.3.60.0070.03012.34
4.3.50.0000.02712.34
4.3.40.0000.02012.34
4.3.30.0000.03312.34
4.3.20.0000.03712.34
4.3.10.0000.03712.34
4.3.00.0000.02312.34

preferences:
48.42 ms | 400 KiB | 5 Q