3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = ' /* Reg */ Ex '; var_dump(preg_replace('/^[\s]+/', '', $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)
8.3.60.0120.00318.30
8.3.50.0040.01816.75
8.3.40.0040.01118.83
8.3.30.0120.00318.84
8.3.20.0080.00020.33
8.3.10.0070.00021.81
8.3.00.0080.00020.84
8.2.180.0110.00718.55
8.2.170.0150.00322.96
8.2.160.0100.00322.21
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0040.00422.39
8.2.120.0040.00426.35
8.2.110.0030.00620.33
8.2.100.0040.00817.73
8.2.90.0040.00419.17
8.2.80.0080.00017.97
8.2.70.0030.00617.75
8.2.60.0070.00017.93
8.2.50.0030.00518.10
8.2.40.0060.00322.50
8.2.30.0000.00721.04
8.2.20.0000.00718.07
8.2.10.0000.00818.03
8.2.00.0000.00818.00
8.1.280.0110.00425.92
8.1.270.0080.00022.02
8.1.260.0040.00426.35
8.1.250.0030.01128.09
8.1.240.0100.00020.81
8.1.230.0080.00319.27
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0070.00317.35
8.1.190.0000.00917.35
8.1.180.0040.00418.10
8.1.170.0080.00018.67
8.1.160.0000.00719.10
8.1.150.0000.00820.59
8.1.140.0040.00419.54
8.1.130.0070.00018.95
8.1.120.0090.00017.62
8.1.110.0000.00817.55
8.1.100.0040.00417.61
8.1.90.0050.00217.56
8.1.80.0040.00417.49
8.1.70.0030.00517.42
8.1.60.0000.00817.68
8.1.50.0080.00017.65
8.1.40.0030.00517.50
8.1.30.0050.00317.78
8.1.20.0030.00517.63
8.1.10.0040.00417.62
8.1.00.0000.00817.50
8.0.300.0000.00718.77
8.0.290.0000.00716.75
8.0.280.0000.00718.30
8.0.270.0050.00217.23
8.0.260.0060.00016.94
8.0.250.0070.00016.92
8.0.240.0000.00716.80
8.0.230.0050.00316.91
8.0.220.0000.00716.96
8.0.210.0050.00316.97
8.0.200.0070.00017.02
8.0.190.0040.00416.92
8.0.180.0030.00616.99
8.0.170.0000.00717.04
8.0.160.0000.00916.91
8.0.150.0030.00616.74
8.0.140.0040.00416.89
8.0.130.0030.00313.32
8.0.120.0070.00016.79
8.0.110.0050.00316.87
8.0.100.0040.00417.02
8.0.90.0040.00416.81
8.0.80.0110.00317.06
8.0.70.0040.00416.79
8.0.60.0070.00016.86
8.0.50.0030.00517.03
8.0.30.0090.00917.21
8.0.20.0130.01817.40
8.0.10.0030.00517.03
8.0.00.0100.00716.92
7.4.330.0030.00315.55
7.4.320.0000.00616.59
7.4.300.0070.00016.55
7.4.290.0070.00016.65
7.4.280.0030.00616.74
7.4.270.0000.00716.70
7.4.260.0070.00016.75
7.4.250.0000.00716.61
7.4.240.0000.00716.72
7.4.230.0000.00716.84
7.4.220.0080.01616.76
7.4.210.0070.00716.75
7.4.200.0070.00016.72
7.4.160.0110.00516.70
7.4.150.0060.01217.40
7.4.140.0140.00817.86
7.4.130.0130.00716.69
7.4.120.0070.01116.68
7.4.110.0140.00416.66
7.4.100.0120.00616.54
7.4.90.0110.00616.70
7.4.80.0030.01719.39
7.4.70.0110.00516.61
7.4.60.0100.01016.78
7.4.50.0000.01516.62
7.4.40.0120.00316.67
7.4.30.0030.01416.78
7.4.10.0030.01615.09
7.4.00.0080.00814.92
7.3.330.0020.00213.26
7.3.320.0030.00312.94
7.3.310.0020.00516.16
7.3.300.0060.00016.17
7.3.290.0080.00916.28
7.3.280.0110.00616.28
7.3.270.0090.00917.40
7.3.260.0110.00616.40
7.3.250.0120.00616.34
7.3.240.0120.00516.52
7.3.230.0030.01916.38
7.3.210.0130.00316.31
7.3.200.0150.00616.30
7.3.190.0110.00416.53
7.3.180.0070.01016.61
7.3.170.0090.00616.52
7.3.160.0120.00316.23
7.3.130.0030.01415.01
7.3.120.0040.01414.61
7.3.110.0120.00615.13
7.3.100.0040.00814.66
7.3.90.0030.01415.06
7.3.80.0000.00814.66
7.3.70.0000.01714.62
7.3.60.0000.00914.96
7.3.50.0080.00814.77
7.3.40.0090.00614.91
7.3.30.0110.00414.94
7.3.20.0030.00916.76
7.3.10.0050.00816.74
7.3.00.0110.00316.68
7.2.330.0030.01316.55
7.2.320.0080.00816.54
7.2.310.0100.00716.63
7.2.300.0060.01216.32
7.2.290.0100.00716.71
7.2.260.0070.00714.79
7.2.250.0070.01015.02
7.2.240.0070.01115.14
7.2.230.0060.00915.09
7.2.220.0140.00014.88
7.2.210.0040.00815.14
7.2.200.0040.00915.04
7.2.190.0060.01214.93
7.2.180.0060.01015.06
7.2.170.0060.01015.13
7.2.160.0030.00715.06
7.2.150.0090.00616.77
7.2.140.0110.00316.86
7.2.130.0090.00616.72
7.2.120.0040.01016.68
7.2.110.0110.00516.82
7.2.100.0080.00716.64
7.2.90.0090.00616.97
7.2.80.0110.00416.64
7.2.70.0000.01416.81
7.2.60.0060.00816.70
7.2.50.0040.00716.72
7.2.40.0070.00616.76
7.2.30.0030.01116.71
7.2.20.0040.01216.96
7.2.10.0090.00916.83
7.2.00.0060.00917.67
7.1.330.0030.01315.68
7.1.320.0080.00416.05
7.1.310.0030.01016.08
7.1.300.0110.00415.97
7.1.290.0120.00615.70
7.1.280.0120.00315.98
7.1.270.0090.00315.59
7.1.260.0070.00715.88
7.1.250.0080.00615.95
7.1.240.0090.00415.66
7.1.230.0100.00315.90
7.1.220.0030.01016.00
7.1.210.0060.00316.00
7.1.200.0040.00915.69
7.1.190.0090.00615.89
7.1.180.0030.01015.69
7.1.170.0030.00615.82
7.1.160.0040.00816.02
7.1.150.0000.00915.92
7.1.140.0040.00815.80
7.1.130.0030.01015.96
7.1.120.0000.01116.00
7.1.110.0030.01015.91
7.1.100.0050.00817.12
7.1.90.0000.01315.76
7.1.80.0030.00715.58
7.1.70.0060.00616.69
7.1.60.0230.00824.65
7.1.50.0230.00724.49
7.1.40.0280.00524.32
7.1.30.0220.01224.53
7.1.20.0220.01224.50
7.1.10.0200.00715.40
7.1.00.0170.01115.54
7.0.330.0030.00915.51
7.0.320.0100.00315.55
7.0.310.0040.01115.55
7.0.300.0000.01115.36
7.0.290.0040.00715.27
7.0.280.0070.01015.65
7.0.270.0030.01015.47
7.0.260.0030.00915.58
7.0.250.0030.01015.47
7.0.240.0030.00915.64
7.0.230.0030.00915.57
7.0.220.0030.00515.17
7.0.210.0000.01015.29
7.0.200.0180.00815.24
7.0.190.0150.01115.31
7.0.180.0450.00814.97
7.0.170.0190.00914.82
7.0.160.0270.01015.00
7.0.150.0190.00714.99
7.0.140.0200.00815.14
7.0.130.0180.00815.17
7.0.120.0190.00715.30
7.0.110.0190.00515.05
7.0.100.0210.00515.25
7.0.90.0210.00315.10
7.0.80.0170.01015.04
7.0.70.0170.00915.17
7.0.60.0130.01014.97
7.0.50.0200.00515.11
7.0.40.0180.01014.34
7.0.30.0230.01014.11
7.0.20.0150.00914.04
7.0.10.0180.01014.04
7.0.00.0130.01114.14
5.6.400.0060.00814.42
5.6.390.0110.00014.38
5.6.380.0000.01114.19
5.6.370.0170.00014.04
5.6.360.0060.00614.36
5.6.350.0030.01014.36
5.6.340.0060.00314.43
5.6.330.0080.00414.33
5.6.320.0000.01213.98
5.6.310.0170.00014.54
5.6.300.0070.00714.07
5.6.290.0030.00714.25
5.6.280.0060.00614.41
5.6.270.0090.00614.59
5.6.260.0040.01114.36
5.6.250.0030.00614.45
5.6.240.0080.00414.52
5.6.230.0060.00614.45
5.6.220.0040.01114.31
5.6.210.0100.00314.16
5.6.200.0070.00414.32
5.6.190.0030.00714.34
5.6.180.0000.01214.28
5.6.170.0170.00014.20
5.6.160.0030.00614.38
5.6.150.0100.00014.19
5.6.140.0090.00314.34
5.6.130.0030.00914.27
5.6.120.0040.01114.27
5.6.110.0060.00614.05
5.6.100.0060.00914.10
5.6.90.0090.00614.02
5.6.80.0060.00913.81
5.6.70.0000.01014.45
5.6.60.0030.00514.24
5.6.50.0030.01014.16
5.6.40.0030.00714.08
5.6.30.0000.01413.91
5.6.20.0040.00414.08
5.6.10.0030.00914.19
5.6.00.0030.01114.18

preferences:
38.49 ms | 401 KiB | 5 Q