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)
7.3.10.0110.00416.46
7.3.00.0050.00516.52
7.2.130.0030.01017.08
7.2.120.0030.01016.67
7.2.110.0030.00817.05
7.2.100.0000.01417.00
7.2.90.0070.01417.00
7.2.80.0100.00317.11
7.2.70.0260.00017.02
7.2.60.0100.00617.05
7.2.50.0100.01416.60
7.2.40.0090.01316.82
7.2.30.0120.01216.90
7.2.20.0100.01017.07
7.2.10.0060.01217.13
7.2.00.0060.00818.38
7.1.250.0060.00615.83
7.1.70.0020.00517.09
7.1.60.0070.01719.40
7.1.50.0040.01817.25
7.1.00.0000.05322.41
7.0.200.0000.00816.72
7.0.140.0100.06722.14
7.0.60.0230.07020.10
7.0.50.0130.07317.84
7.0.40.0100.07017.77
7.0.30.0070.08017.80
7.0.20.0070.07017.81
7.0.10.0100.08017.88
7.0.00.0100.08317.91
5.6.280.0100.06721.11
5.6.210.0100.07720.71
5.6.200.0100.06718.16
5.6.190.0070.06018.14
5.6.180.0030.07318.20
5.6.170.0070.08018.14
5.6.160.0030.08318.19
5.6.150.0030.05318.18
5.6.140.0070.04718.16
5.6.130.0070.05718.29
5.6.120.0100.08018.19
5.6.110.0100.08018.17
5.6.100.0130.07718.22
5.6.90.0000.04718.23
5.6.80.0170.07017.68
5.6.70.0070.04317.67
5.6.60.0070.03717.65
5.6.50.0070.03717.62
5.6.40.0070.07317.59
5.6.30.0030.05717.54
5.6.20.0030.08317.54
5.6.10.0170.06717.47
5.6.00.0100.07317.55
5.5.350.0000.06720.47
5.5.340.0200.07017.93
5.5.330.0200.07018.05
5.5.320.0100.08017.95
5.5.310.0070.07717.94
5.5.300.0030.08018.03
5.5.290.0030.05318.07
5.5.280.0130.05017.95
5.5.270.0030.08317.92
5.5.260.0130.07317.97
5.5.250.0070.08317.76
5.5.240.0070.07317.40
5.5.230.0070.08317.30
5.5.220.0100.07317.41
5.5.210.0030.04317.48
5.5.200.0100.07017.31
5.5.190.0070.06717.33
5.5.180.0030.04317.31
5.5.160.0030.04717.27
5.5.150.0070.08017.32
5.5.140.0000.08317.36
5.5.130.0100.07017.30
5.5.120.0100.07717.27
5.5.110.0030.04317.33
5.5.100.0030.04717.34
5.5.90.0070.07717.21
5.5.80.0070.05317.24
5.5.70.0000.06017.20
5.5.60.0100.07317.16
5.5.50.0030.04717.18
5.5.40.0030.07317.16
5.5.30.0070.07317.21
5.5.20.0070.08717.20
5.5.10.0030.05317.20
5.5.00.0100.03317.21
5.4.450.0070.08019.45
5.4.440.0070.06319.22
5.4.430.0100.07319.45
5.4.420.0070.07719.45
5.4.410.0130.07319.23
5.4.400.0030.08319.27
5.4.390.0100.07719.04
5.4.380.0100.07719.14
5.4.370.0100.04719.10
5.4.360.0130.06719.02
5.4.350.0100.05018.98
5.4.340.0070.04019.01
5.4.320.0100.07018.99
5.4.310.0070.08019.02
5.4.300.0030.07719.10
5.4.290.0130.07018.97
5.4.280.0130.07019.14
5.4.270.0030.08319.10
5.4.260.0030.04319.10
5.4.250.0030.04319.03
5.4.240.0100.06719.12
5.4.230.0070.07719.14
5.4.220.0070.07319.00
5.4.210.0030.07319.12
5.4.200.0170.06719.05
5.4.190.0170.04319.12
5.4.180.0000.06019.02
5.4.170.0000.04318.88
5.4.160.0000.04319.11
5.4.150.0070.06319.04
5.4.140.0070.07316.45
5.4.130.0030.05716.34
5.4.120.0030.06716.46
5.4.110.0130.07016.35
5.4.100.0100.06316.48
5.4.90.0100.06316.48
5.4.80.0070.06716.44
5.4.70.0070.04016.45
5.4.60.0100.07016.48
5.4.50.0030.07716.33
5.4.40.0100.03016.26
5.4.30.0070.04316.51
5.4.20.0170.06316.34
5.4.10.0100.07016.38
5.4.00.0100.03315.98
5.3.290.0030.05014.71
5.3.280.0100.06714.65
5.3.270.0030.07314.68
5.3.260.0070.07314.61
5.3.250.0070.03714.59
5.3.240.0070.06314.83
5.3.230.0130.07314.65
5.3.220.0030.07014.58
5.3.210.0070.08014.61
5.3.200.0030.04014.62
5.3.190.0070.07314.79
5.3.180.0130.05714.62
5.3.170.0070.05014.64
5.3.160.0030.08014.58
5.3.150.0100.07314.62
5.3.140.0130.04314.57
5.3.130.0000.06714.57
5.3.120.0070.07714.59
5.3.110.0030.08314.52
5.3.100.0130.04714.04
5.3.90.0100.05314.04
5.3.80.0100.07014.23
5.3.70.0070.07314.07
5.3.60.0070.05714.02
5.3.50.0100.04313.98
5.3.40.0070.07314.00
5.3.30.0030.07014.13
5.3.20.0100.06013.71
5.3.10.0100.04713.56
5.3.00.0030.08013.68
5.2.170.0030.06711.16
5.2.160.0030.06011.16
5.2.150.0100.05311.20
5.2.140.0130.05011.14
5.2.130.0030.06711.18
5.2.120.0030.04011.07
5.2.110.0030.04311.01
5.2.100.0100.06011.08
5.2.90.0100.05711.15
5.2.80.0000.04310.95
5.2.70.0100.06011.15
5.2.60.0030.05711.08
5.2.50.0100.05711.05
5.2.40.0030.06311.00
5.2.30.0030.06711.00
5.2.20.0030.05310.89
5.2.10.0100.05710.79
5.2.00.0030.06710.74
5.1.60.0000.0409.92
5.1.50.0030.05310.06
5.1.40.0070.0339.96
5.1.30.0070.05310.34
5.1.20.0100.05010.59
5.1.10.0070.05010.15
5.1.00.0070.05310.15
5.0.50.0030.0438.50
5.0.40.0070.0438.37
5.0.30.0000.0608.33
5.0.20.0000.0438.17
5.0.10.0030.0278.18
5.0.00.0030.0408.00
4.4.90.0000.0277.69
4.4.80.0000.0407.69
4.4.70.0070.0307.69
4.4.60.0000.0407.69
4.4.50.0000.0377.69
4.4.40.0030.0577.69
4.4.30.0030.0377.69
4.4.20.0070.0307.69
4.4.10.0070.0307.69
4.4.00.0000.0507.69
4.3.110.0070.0337.69
4.3.100.0000.0407.69
4.3.90.0000.0277.69
4.3.80.0030.0277.69
4.3.70.0000.0407.69
4.3.60.0070.0337.69
4.3.50.0030.0307.69
4.3.40.0030.0377.69
4.3.30.0000.0277.69
4.3.20.0030.0377.69
4.3.10.0000.0277.69
4.3.00.0070.0337.69

preferences:
34.93 ms | 400 KiB | 5 Q