3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ret_str = " O nline shell "; echo strtolower(preg_replace("/[^A-Za-z0-9_]/", '', str_replace(' ', '_', trim($ret_str)))); $ret_str = preg_replace("/[^A-Za-z0-9_]/", '', $ret_str); $ret_str = preg_replace("/[_]+/", '_', $ret_str); echo "\n".$ret_str;

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)
8.3.60.0090.00618.55
8.3.50.0160.00321.99
8.3.40.0090.00618.72
8.3.30.0030.01020.29
8.3.20.0030.00520.39
8.3.10.0080.00021.92
8.3.00.0070.00022.36
8.2.180.0100.01018.54
8.2.170.0090.00622.96
8.2.160.0110.00322.37
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0080.00026.16
8.2.120.0040.00419.54
8.2.110.0030.00622.08
8.2.100.0040.00719.57
8.2.90.0050.00319.23
8.2.80.0000.00819.32
8.2.70.0030.00617.75
8.2.60.0000.00817.93
8.2.50.0040.00418.07
8.2.40.0050.00318.28
8.2.30.0000.00818.01
8.2.20.0080.00017.68
8.2.10.0000.00817.89
8.2.00.0000.01017.88
8.1.280.0070.00725.92
8.1.270.0000.00824.66
8.1.260.0000.00526.35
8.1.250.0060.00328.09
8.1.240.0070.01123.98
8.1.230.0030.00719.16
8.1.220.0000.00817.75
8.1.210.0000.00818.77
8.1.200.0030.00617.47
8.1.190.0060.00317.43
8.1.180.0080.00019.13
8.1.170.0000.00818.72
8.1.160.0040.00422.15
8.1.150.0000.00818.69
8.1.140.0050.00217.45
8.1.130.0030.00317.76
8.1.120.0040.00417.62
8.1.110.0000.00717.45
8.1.100.0000.00717.53
8.1.90.0000.00817.50
8.1.80.0050.00317.45
8.1.70.0000.00817.48
8.1.60.0060.00317.56
8.1.50.0080.00017.64
8.1.40.0050.00317.62
8.1.30.0030.00517.76
8.1.20.0000.00817.70
8.1.10.0050.00317.61
8.1.00.0000.00717.57
8.0.300.0070.00018.77
8.0.290.0040.00417.18
8.0.280.0070.00018.38
8.0.270.0050.00217.00
8.0.260.0000.00616.97
8.0.250.0000.00717.16
8.0.240.0040.00416.97
8.0.230.0040.00417.10
8.0.220.0000.00717.03
8.0.210.0030.00417.02
8.0.200.0030.00317.11
8.0.190.0030.00517.05
8.0.180.0000.00816.96
8.0.170.0060.00316.92
8.0.160.0070.00016.91
8.0.150.0020.00517.04
8.0.140.0000.00717.04
8.0.130.0050.00013.55
8.0.120.0040.00416.89
8.0.110.0040.00416.95
8.0.100.0050.00316.96
8.0.90.0000.00816.80
8.0.80.0030.01316.93
8.0.70.0040.00416.83
8.0.60.0050.00316.86
8.0.50.0040.00417.00
8.0.30.0090.01317.25
8.0.20.0080.00917.40
8.0.10.0000.00716.89
8.0.00.0060.01116.85
7.4.330.0000.00515.00
7.4.320.0060.00016.55
7.4.300.0000.00616.63
7.4.290.0030.00316.63
7.4.280.0030.00516.78
7.4.270.0030.00316.55
7.4.260.0030.00616.64
7.4.250.0000.00716.63
7.4.240.0060.00216.72
7.4.230.0030.00316.78
7.4.220.0110.00716.83
7.4.210.0070.00916.66
7.4.200.0030.00316.57
7.4.190.0050.00216.70
7.4.160.0100.00716.68
7.4.150.0100.00617.40
7.4.140.0100.01017.86
7.4.130.0150.00716.55
7.4.120.0120.00616.73
7.4.110.0120.00916.48
7.4.100.0090.00916.78
7.4.90.0090.00916.66
7.4.80.0090.00919.39
7.4.70.0030.01516.71
7.4.60.0070.01016.48
7.4.50.0060.00316.59
7.4.40.0030.01222.77
7.4.30.0070.01016.61
7.4.00.0000.01215.27
7.3.330.0000.00613.18
7.3.320.0070.00013.17
7.3.310.0070.00016.26
7.3.300.0030.00316.32
7.3.290.0050.00916.38
7.3.280.0130.00516.39
7.3.270.0100.00717.40
7.3.260.0040.01316.48
7.3.250.0070.01016.50
7.3.240.0060.01116.56
7.3.230.0130.00316.48
7.3.210.0070.01316.73
7.3.200.0100.00719.39
7.3.190.0150.00816.45
7.3.180.0090.00616.59
7.3.170.0120.00916.39
7.3.160.0060.00916.35
7.3.120.0030.01215.10
7.2.330.0070.01016.72
7.2.320.0060.01016.53
7.2.310.0060.01216.58
7.2.300.0140.00316.80
7.2.290.0110.01216.89
7.2.60.0060.00317.16
7.1.200.0060.00616.04
7.1.70.0000.00917.36
7.1.60.0060.01619.43
7.1.50.0060.01516.99
7.1.00.0130.06722.47
7.0.200.0040.00416.95
7.0.140.0030.07022.08
7.0.60.0130.05020.08
7.0.50.0030.04017.83
7.0.40.0070.08720.23
7.0.30.0200.08020.06
7.0.20.0230.08020.35
7.0.10.0170.04320.19
7.0.00.0070.04020.18
5.6.280.0070.07020.81
5.6.210.0070.07720.70
5.6.200.0030.04718.18
5.6.190.0070.04020.48
5.6.180.0270.04720.67
5.6.170.0130.04720.49
5.6.160.0070.08020.41
5.6.150.0030.05018.12
5.6.140.0130.07718.20
5.6.130.0000.07318.21
5.6.120.0030.06320.98
5.6.110.0070.06321.00
5.6.100.0100.07721.08
5.6.90.0000.08321.07
5.6.80.0130.03020.50
5.6.70.0270.04320.41
5.5.350.0070.08320.38
5.5.340.0030.08317.88
5.5.330.0100.08020.23
5.5.320.0400.03320.13
5.5.310.0230.04320.26
5.5.300.0070.08018.01
5.5.290.0100.03718.00
5.5.280.0100.04020.84
5.5.270.0000.04720.95
5.5.260.0070.08720.75
5.5.250.0170.06020.46
5.5.240.0030.04020.37
5.4.450.0670.06019.60
5.4.440.1200.06319.13
5.4.430.0900.05719.45
5.4.420.0730.05319.46
5.4.410.0170.06019.51
5.4.400.1070.07018.72
5.4.390.1070.05318.69
5.4.380.0130.05718.50
5.4.370.0200.05018.50
5.4.360.0170.05018.46
5.4.350.0110.04011.98
5.4.340.0120.03911.97
5.4.320.0090.03912.46
5.4.310.0070.03612.45
5.4.300.0080.04112.45
5.4.290.0110.04112.45
5.4.280.0050.03612.35
5.4.270.0060.03812.35
5.4.260.0100.04012.35
5.4.250.0070.04812.35
5.4.240.0100.04718.88
5.4.230.0130.04718.82
5.4.220.0030.05718.82
5.4.210.0030.05718.75
5.4.200.0070.07018.77
5.4.190.0070.05318.81
5.4.180.0170.05718.95
5.4.170.0070.05318.89
5.4.160.0130.04718.93
5.4.150.0070.05318.63
5.4.140.0070.05016.25
5.4.130.0170.04716.25
5.4.120.0130.05316.26
5.4.110.0030.05316.22
5.4.100.0070.04716.49
5.4.90.0030.05016.33
5.4.80.0070.04716.40
5.4.70.0070.04716.20
5.4.60.0100.04316.44
5.4.50.0130.04016.26
5.4.40.0070.05716.55
5.4.30.0070.04716.37
5.4.20.0100.05716.16
5.4.10.0030.05316.45
5.4.00.0030.05015.70
5.3.290.0040.04112.80
5.3.280.0070.05314.59
5.3.270.0070.05314.76
5.3.260.0100.05014.75
5.3.250.0030.05714.37
5.3.240.0030.05314.64
5.3.230.0100.04714.60
5.3.220.0070.04714.44
5.3.210.0030.05714.45
5.3.200.0130.05714.45
5.3.190.0100.04714.57
5.3.180.0030.05314.42
5.3.170.0100.06314.66
5.3.160.0130.06014.58
5.3.150.0130.07014.26
5.3.140.0100.04314.42
5.3.130.0070.05314.70
5.3.120.0030.06014.70
5.3.110.0130.05014.56
5.3.100.0070.05314.05
5.3.90.0070.07313.89
5.3.80.0070.04713.93
5.3.70.0100.04713.79
5.3.60.0100.04313.88
5.3.50.0070.05313.83
5.3.40.0030.05314.04
5.3.30.0070.05013.93
5.3.20.0070.05313.73
5.3.10.0030.05313.66
5.3.00.0100.05313.67
5.2.170.0030.05311.07
5.2.160.0030.04711.07
5.2.150.0100.03311.24
5.2.140.0030.04311.15
5.2.130.0030.04311.01
5.2.120.0130.03011.19
5.2.110.0170.02711.19
5.2.100.0130.03011.10
5.2.90.0000.05311.19
5.2.80.0070.06011.09
5.2.70.0030.04011.10
5.2.60.0170.03010.89
5.2.50.0100.03710.78
5.2.40.0100.03311.01
5.2.30.0100.03310.99
5.2.20.0030.04011.05
5.2.10.0030.04010.62
5.2.00.0070.04710.93
5.1.60.0100.0379.85
5.1.50.0030.0339.76
5.1.40.0070.0479.88
5.1.30.0100.03010.34
5.1.20.0070.04310.56
5.1.10.0030.03710.03
5.1.00.0030.03710.09
5.0.50.0030.0308.39
5.0.40.0030.0238.29
5.0.30.0070.0378.37
5.0.20.0000.0278.19
5.0.10.0000.0308.21
5.0.00.0100.0338.35
4.4.90.0030.0206.90
4.4.80.0070.0276.90
4.4.70.0030.0306.90
4.4.60.0070.0236.90
4.4.50.0030.0206.90
4.4.40.0000.0336.90
4.4.30.0130.0106.90
4.4.20.0000.0236.90
4.4.10.0000.0276.90
4.4.00.0030.0306.90
4.3.110.0000.0236.90
4.3.100.0000.0236.90
4.3.90.0000.0306.90
4.3.80.0000.0376.90
4.3.70.0000.0206.90
4.3.60.0030.0206.90
4.3.50.0030.0206.90
4.3.40.0000.0336.90
4.3.30.0070.0206.90
4.3.20.0030.0236.90
4.3.10.0070.0236.90
4.3.00.0070.0236.73

preferences:
53.79 ms | 401 KiB | 5 Q