3v4l.org

run code in 300+ PHP versions simultaneously
<?php $char_set = 'a-z_'; $val = 'login_form'; $val = preg_replace('/[^'.preg_quote($char_set, '/').']+/i', '', $val); var_dump($val);

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)
8.3.60.0150.00018.56
8.3.50.0080.01021.27
8.3.40.0070.01519.04
8.3.30.0140.00718.92
8.3.20.0000.00820.51
8.3.10.0050.00321.92
8.3.00.0040.00422.52
8.2.180.0110.00416.75
8.2.170.0120.00322.96
8.2.160.0080.00820.52
8.2.150.0000.00824.18
8.2.140.0090.00924.66
8.2.130.0000.01326.16
8.2.120.0040.00421.23
8.2.110.0000.01020.50
8.2.100.0070.00419.46
8.2.90.0060.00319.05
8.2.80.0060.00317.97
8.2.70.0000.00917.63
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0000.00917.87
8.2.30.0000.00718.02
8.2.20.0030.00617.71
8.2.10.0040.00417.88
8.2.00.0000.00717.89
8.1.280.0070.01025.92
8.1.270.0090.00020.52
8.1.260.0060.00326.35
8.1.250.0030.00728.09
8.1.240.0000.00923.97
8.1.230.0070.00319.14
8.1.220.0040.00417.76
8.1.210.0000.00818.77
8.1.200.0060.00317.48
8.1.190.0040.00417.41
8.1.180.0040.00418.49
8.1.170.0050.00318.83
8.1.160.0000.00822.07
8.1.150.0000.00818.69
8.1.140.0000.00717.50
8.1.130.0000.00717.76
8.1.120.0000.00717.50
8.1.110.0000.00917.63
8.1.100.0070.00017.61
8.1.90.0000.00717.57
8.1.80.0000.00717.64
8.1.70.0000.00717.59
8.1.60.0040.00417.70
8.1.50.0000.00717.67
8.1.40.0040.00417.68
8.1.30.0040.00417.73
8.1.20.0040.00417.78
8.1.10.0040.00417.54
8.1.00.0030.00517.58
8.0.300.0020.00518.77
8.0.290.0000.00817.30
8.0.280.0070.00018.52
8.0.270.0070.00017.19
8.0.260.0060.00016.87
8.0.250.0030.00517.14
8.0.240.0080.00017.11
8.0.230.0070.00016.97
8.0.220.0030.00316.97
8.0.210.0040.00417.01
8.0.200.0000.00716.98
8.0.190.0040.00417.13
8.0.180.0040.00417.09
8.0.170.0040.00416.96
8.0.160.0050.00316.93
8.0.150.0030.00517.01
8.0.140.0000.00716.95
8.0.130.0030.00313.43
8.0.120.0030.00617.02
8.0.110.0000.00817.07
8.0.100.0000.00716.86
8.0.90.0040.00417.09
8.0.80.0130.00717.08
8.0.70.0040.00416.93
8.0.60.0030.00517.08
8.0.50.0030.00516.77
8.0.30.0080.01117.10
8.0.20.0100.00917.40
8.0.10.0030.00516.94
8.0.00.0070.01016.83
7.4.330.0000.00415.00
7.4.320.0030.00316.69
7.4.300.0000.00716.54
7.4.290.0000.00816.74
7.4.280.0030.00316.56
7.4.270.0060.00016.75
7.4.260.0000.00716.72
7.4.250.0000.00716.70
7.4.240.0020.00516.64
7.4.230.0000.00716.45
7.4.220.0060.01216.61
7.4.210.0070.00916.67
7.4.200.0040.00416.84
7.4.190.0000.00716.79
7.4.160.0070.01316.49
7.4.150.0070.01017.40
7.4.140.0060.01517.86
7.4.130.0070.01116.71
7.4.120.0100.00716.62
7.4.110.0140.00716.72
7.4.100.0100.00716.56
7.4.90.0110.00616.59
7.4.80.0030.01319.39
7.4.70.0110.00716.64
7.4.60.0090.00916.67
7.4.50.0030.00316.52
7.4.40.0040.01122.77
7.4.30.0080.01116.72
7.4.00.0070.01015.11
7.3.330.0050.00013.18
7.3.320.0000.00713.18
7.3.310.0040.00416.31
7.3.300.0000.00716.35
7.3.290.0030.01216.30
7.3.280.0120.00216.35
7.3.270.0070.01117.40
7.3.260.0100.00716.45
7.3.250.0070.01016.54
7.3.240.0140.00416.63
7.3.230.0070.01016.41
7.3.210.0070.01016.63
7.3.200.0150.01519.39
7.3.190.0120.00916.37
7.3.180.0090.00616.44
7.3.170.0070.01016.61
7.3.160.0090.00616.40
7.3.120.0030.01414.88
7.3.10.0090.00716.62
7.3.00.0150.00516.44
7.2.330.0100.00716.79
7.2.320.0090.00916.78
7.2.310.0130.00916.67
7.2.300.0070.01016.59
7.2.290.0030.01416.83
7.2.130.0070.00716.82
7.2.120.0060.00916.79
7.2.110.0100.00616.88
7.2.100.0100.00416.86
7.2.90.0170.00316.84
7.2.80.0090.00716.75
7.2.70.0090.01016.83
7.2.60.0120.00816.85
7.2.50.0110.00816.99
7.2.40.0060.01116.93
7.2.30.0150.00316.81
7.2.20.0060.00916.75
7.2.10.0130.00516.97
7.2.00.0110.00517.68
7.1.250.0080.00715.72
7.1.100.0030.01418.18
7.1.70.0040.00417.05
7.1.60.0100.01019.82
7.1.50.0000.01117.03
7.1.00.0000.04322.38
7.0.200.0020.00516.63
7.0.140.0130.06022.06
7.0.100.0030.08019.86
7.0.90.0130.07719.92
7.0.80.0100.07719.96
7.0.70.0100.08019.82
7.0.60.0100.08319.86
7.0.50.0070.08720.33
7.0.40.0070.08719.99
7.0.30.0070.08320.10
7.0.20.0100.08020.01
7.0.10.0100.05020.04
7.0.00.0200.07320.12
5.6.280.0100.06720.77
5.6.250.0100.08020.58
5.6.240.0130.07720.62
5.6.230.0100.08320.49
5.6.220.0130.07320.65
5.6.210.0230.06320.52
5.6.200.0070.08720.86
5.6.190.0170.07720.89
5.6.180.0070.08320.98
5.6.170.0100.07021.08
5.6.160.0070.08721.12
5.6.150.0100.07720.91
5.6.140.0100.08021.01
5.6.130.0070.08320.96
5.6.120.0170.08021.04
5.6.110.0170.07321.11
5.6.100.0070.04720.97
5.6.90.0100.05021.01
5.6.80.0070.05720.29
5.6.70.0100.07320.26
5.6.60.0070.08320.41
5.6.50.0100.04720.34
5.6.40.0070.07320.38
5.6.30.0100.07020.34
5.6.20.0070.08020.43
5.6.10.0130.07020.40
5.6.00.0100.07020.23
5.5.380.0100.07720.29
5.5.370.0100.07020.30
5.5.360.0100.06320.49
5.5.350.0100.08020.40
5.5.340.0200.06720.78
5.5.330.0100.07020.78
5.5.320.0070.08020.88
5.5.310.0070.08020.72
5.5.300.0130.04320.82
5.5.290.0030.09320.66
5.5.280.0130.07320.83
5.5.270.0130.05720.76
5.5.260.0200.07720.84
5.5.250.0130.07720.59
5.5.240.0070.07720.09
5.5.230.0070.06320.20
5.5.220.0100.07320.20
5.5.210.0000.08020.18
5.5.200.0000.08320.18
5.5.190.0130.07719.90
5.5.180.0130.06720.02
5.5.160.0100.07020.15
5.5.150.0100.08020.12
5.5.140.0130.07720.19
5.5.130.0030.08020.05
5.5.120.0030.06019.92
5.5.110.0170.07019.92
5.5.100.0170.07020.01
5.5.90.0030.08020.09
5.5.80.0100.08020.01
5.5.70.0130.06720.01
5.5.60.0130.07320.08
5.5.50.0100.07720.00
5.5.40.0030.08319.97
5.5.30.0030.07719.98
5.5.20.0170.07320.01
5.5.10.0070.07719.91
5.5.00.0100.07719.95
5.4.450.0100.05319.42
5.4.440.0170.06719.29
5.4.430.0130.07719.27
5.4.420.0030.07019.13
5.4.410.0100.04319.25
5.4.400.0100.07319.15
5.4.390.0070.08319.15
5.4.380.0170.06318.97
5.4.370.0100.07319.05
5.4.360.0030.08018.98
5.4.350.0070.05019.14
5.4.340.0130.07318.95
5.4.320.0070.06319.07
5.4.310.0030.05319.03
5.4.300.0100.08019.07
5.4.290.0100.07018.80
5.4.280.0070.06319.13
5.4.270.0100.07719.06
5.4.260.0130.05719.13
5.4.250.0030.04719.23
5.4.240.0130.07019.02
5.4.230.0100.07719.07
5.4.220.0100.07719.02
5.4.210.0070.05318.89
5.4.200.0100.07019.02
5.4.190.0170.06719.03
5.4.180.0030.06318.89
5.4.170.0070.07318.92
5.4.160.0070.07019.01
5.4.150.0100.08019.01
5.4.140.0100.06716.30
5.4.130.0030.07016.31
5.4.120.0130.06016.24
5.4.110.0070.07316.21
5.4.100.0030.05716.34
5.4.90.0000.07716.34
5.4.80.0070.06016.35
5.4.70.0000.05016.25
5.4.60.0070.03716.25
5.4.50.0000.04316.14
5.4.40.0070.05016.25
5.4.30.0030.07716.30
5.4.20.0070.03316.39
5.4.10.0030.03716.41
5.4.00.0000.03715.76
5.3.290.0000.08014.66
5.3.280.0030.08314.53
5.3.270.0030.08714.52
5.3.260.0130.06714.46
5.3.250.0000.08014.58
5.3.240.0100.06714.57
5.3.230.0100.06314.46
5.3.220.0070.07314.42
5.3.210.0170.07014.55
5.3.200.0070.08014.51
5.3.190.0070.04714.41
5.3.180.0130.07014.54
5.3.170.0030.04014.52
5.3.160.0030.06714.45
5.3.150.0070.06314.56
5.3.140.0030.04314.55
5.3.130.0070.03714.55
5.3.120.0030.04014.54
5.3.110.0130.05014.39
5.3.100.0000.04013.95
5.3.90.0030.03714.02
5.3.80.0070.03314.02
5.3.70.0070.04013.80
5.3.60.0030.03713.98
5.3.50.0030.05013.80
5.3.40.0030.04313.94
5.3.30.0100.02713.87
5.3.20.0030.03313.67
5.3.10.0070.03013.44
5.3.00.0000.03713.39
5.2.170.0030.03010.94
5.2.160.0030.02710.98
5.2.150.0000.03010.96
5.2.140.0000.07010.98
5.2.130.0130.04011.17
5.2.120.0130.05311.06
5.2.110.0000.04011.15
5.2.100.0070.05311.02
5.2.90.0070.06011.13
5.2.80.0000.06711.15
5.2.70.0070.04711.14
5.2.60.0000.06311.10
5.2.50.0030.02710.90
5.2.40.0030.06010.86
5.2.30.0070.05711.02
5.2.20.0070.02710.81
5.2.10.0070.05310.77
5.2.00.0070.04010.62
5.1.60.0000.02710.05
5.1.50.0070.0479.83
5.1.40.0000.0279.97
5.1.30.0030.02310.29
5.1.20.0030.05310.40
5.1.10.0000.02710.07
5.1.00.0030.02710.09
5.0.50.0070.0178.59
5.0.40.0030.0238.41
5.0.30.0000.0338.18
5.0.20.0000.0208.29
5.0.10.0030.0308.18
5.0.00.0000.0408.24
4.4.90.0030.0138.18
4.4.80.0000.0138.18
4.4.70.0000.0238.18
4.4.60.0030.0138.18
4.4.50.0030.0138.18
4.4.40.0000.0238.18
4.4.30.0000.0178.18
4.4.20.0000.0178.18
4.4.10.0030.0138.18
4.4.00.0000.0278.18
4.3.110.0000.0278.18
4.3.100.0000.0178.18
4.3.90.0030.0138.18
4.3.80.0000.0278.18
4.3.70.0030.0278.18
4.3.60.0030.0208.18
4.3.50.0000.0278.18
4.3.40.0030.0208.18
4.3.30.0000.0178.18
4.3.20.0000.0208.18
4.3.10.0000.0178.18
4.3.00.0000.0208.18

preferences:
52.52 ms | 401 KiB | 5 Q