3v4l.org

run code in 300+ PHP versions simultaneously
<?php preg_match( '/^\[#(\a+)\]/', '[#www.] Subject', $matches); echo $matches[1]; // 1234

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)
8.3.60.0150.00618.68
8.3.50.0110.00621.99
8.3.40.0090.00619.08
8.3.30.0070.00720.34
8.3.20.0050.00320.30
8.3.10.0040.00422.05
8.3.00.0040.00422.21
8.2.180.0100.01016.85
8.2.170.0070.00722.96
8.2.160.0030.01020.47
8.2.150.0080.00024.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0090.00019.76
8.2.110.0040.00422.20
8.2.100.0040.00719.24
8.2.90.0040.00419.16
8.2.80.0060.00319.32
8.2.70.0060.00317.75
8.2.60.0040.00418.03
8.2.50.0060.00318.07
8.2.40.0040.00418.22
8.2.30.0080.00017.99
8.2.20.0000.00817.74
8.2.10.0000.00717.88
8.2.00.0090.00317.88
8.1.280.0110.00725.92
8.1.270.0070.00024.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.84
8.1.230.0070.00419.16
8.1.220.0000.00917.74
8.1.210.0040.00418.77
8.1.200.0000.01017.23
8.1.190.0030.00617.40
8.1.180.0080.00019.01
8.1.170.0050.00318.76
8.1.160.0040.00422.04
8.1.150.0000.00818.54
8.1.140.0000.00717.54
8.1.130.0000.00717.75
8.1.120.0050.00317.53
8.1.110.0080.00017.36
8.1.100.0040.00417.53
8.1.90.0000.00817.48
8.1.80.0000.00817.51
8.1.70.0070.00017.45
8.1.60.0030.00617.64
8.1.50.0050.00317.55
8.1.40.0000.00817.55
8.1.30.0000.00817.68
8.1.20.0040.00417.54
8.1.10.0000.00817.63
8.1.00.0000.01017.59
8.0.300.0000.00718.77
8.0.290.0070.00017.04
8.0.280.0030.00318.34
8.0.270.0070.00017.09
8.0.260.0030.00316.96
8.0.250.0030.00317.13
8.0.240.0050.00317.07
8.0.230.0000.00716.95
8.0.220.0000.00716.91
8.0.210.0000.00716.85
8.0.200.0030.00316.93
8.0.190.0040.00417.06
8.0.180.0070.00016.99
8.0.170.0000.00816.93
8.0.160.0030.00516.88
8.0.150.0040.00416.96
8.0.140.0050.00316.79
8.0.130.0000.00713.43
8.0.120.0080.00016.92
8.0.110.0000.00717.00
8.0.100.0040.00416.96
8.0.90.0000.00716.92
8.0.80.0160.00316.96
8.0.70.0000.00716.88
8.0.60.0000.00716.93
8.0.50.0040.00416.84
8.0.30.0090.01017.28
8.0.20.0080.01317.40
8.0.10.0050.00316.98
8.0.00.0070.01216.87
7.4.330.0000.00515.00
7.4.320.0060.00016.66
7.4.300.0000.00716.57
7.4.290.0040.00416.51
7.4.280.0030.00316.67
7.4.270.0070.00016.64
7.4.260.0070.00016.66
7.4.250.0080.00016.51
7.4.240.0020.00616.67
7.4.230.0020.00516.68
7.4.220.0170.00016.54
7.4.210.0070.00716.66
7.4.200.0040.00416.72
7.4.190.0070.00016.75
7.4.160.0110.00716.73
7.4.150.0070.01017.40
7.4.140.0080.01217.86
7.4.130.0120.00716.60
7.4.120.0090.01016.60
7.4.110.0000.02216.54
7.4.100.0130.00416.45
7.4.90.0170.00616.77
7.4.80.0070.01319.39
7.4.70.0070.01016.95
7.4.60.0150.00916.47
7.4.50.0050.00316.36
7.4.40.0030.01022.77
7.4.30.0090.00616.90
7.4.00.0060.01114.96
7.3.330.0050.00013.13
7.3.320.0000.00613.27
7.3.310.0030.00316.46
7.3.300.0070.00016.40
7.3.290.0110.00516.45
7.3.280.0060.01116.42
7.3.270.0120.00617.40
7.3.260.0060.01216.44
7.3.250.0140.00616.55
7.3.240.0170.00316.61
7.3.230.0090.00916.45
7.3.210.0120.00616.88
7.3.200.0160.00319.39
7.3.190.0070.01016.45
7.3.180.0100.00716.59
7.3.170.0120.00916.43
7.3.160.0060.01116.47
7.3.120.0050.01014.97
7.3.110.0060.01214.96
7.3.100.0030.01315.19
7.3.90.0030.01414.76
7.3.80.0000.01414.91
7.3.70.0040.01414.63
7.3.60.0070.00714.84
7.3.50.0090.00614.91
7.3.40.0030.00715.02
7.3.30.0070.01014.77
7.3.20.0090.00616.78
7.3.10.0070.00316.87
7.3.00.0060.00316.93
7.2.330.0110.00716.67
7.2.320.0120.00616.82
7.2.310.0070.01316.66
7.2.300.0030.01316.61
7.2.290.0050.01016.80
7.2.250.0040.01414.98
7.2.240.0000.01715.17
7.2.230.0040.01115.32
7.2.220.0070.00714.88
7.2.210.0070.01015.26
7.2.200.0030.00915.11
7.2.190.0090.00614.93
7.2.180.0060.00615.25
7.2.170.0040.00415.10
7.2.00.0040.01219.65
7.1.330.0030.01015.82
7.1.320.0070.00716.05
7.1.310.0090.00615.95
7.1.300.0030.01016.05
7.1.290.0030.01315.82
7.1.280.0040.01116.11
7.1.270.0070.00716.11
7.1.260.0080.00015.87
7.1.100.0000.01018.52
7.1.70.0040.00417.27
7.1.60.0070.01719.43
7.1.50.0070.01117.09
7.1.00.0000.04022.42
7.0.200.0040.00416.89
7.0.140.0000.07321.95
7.0.60.0030.08019.86
7.0.50.0100.07717.85
7.0.40.0030.07320.16
7.0.30.0400.06020.04
7.0.20.0170.06320.01
7.0.10.0370.07320.26
7.0.00.0030.04320.20
5.6.280.0070.07020.90
5.6.210.0030.08320.47
5.6.200.0070.04018.21
5.6.190.0030.07720.40
5.6.180.0270.04720.63
5.6.170.0430.07320.51
5.6.160.0100.08020.48
5.6.150.0100.03318.11
5.6.140.0070.08018.12
5.6.130.0070.08018.12
5.6.120.0000.06320.98
5.6.110.0030.07320.98
5.6.100.0130.07721.08
5.6.90.0100.03721.07
5.6.80.0000.04020.33
5.6.70.0230.07320.40
5.5.350.0130.05720.48
5.5.340.0030.07717.91
5.5.330.0030.04320.23
5.5.320.0170.04020.21
5.5.310.0200.04320.28
5.5.300.0070.03717.98
5.5.290.0100.07717.93
5.5.280.0100.03320.84
5.5.270.0100.08020.66
5.5.260.0230.03720.88
5.5.250.0130.07320.61
5.5.240.0070.08320.02
5.4.450.2600.04019.46
5.4.440.2530.05019.10
5.4.430.2470.04319.13
5.4.420.2670.04019.48
5.4.410.2430.04019.41
5.4.400.2570.03719.13
5.4.390.2300.03718.89
5.4.380.2670.04019.09
5.4.370.2570.03719.25
5.4.360.2400.03319.13
5.4.350.2430.04019.10
5.4.340.2670.04019.16
5.4.320.1770.04319.06
5.4.310.2600.04718.78
5.4.300.2600.03719.13
5.4.290.2600.04018.92
5.4.280.2430.03019.08
5.4.270.2530.04019.13
5.4.260.2230.04019.25
5.4.250.2230.04019.07
5.4.240.2300.03318.80
5.4.230.2470.03018.77
5.4.220.0600.03718.94
5.4.210.0030.04319.23
5.4.200.0070.03318.91
5.4.190.0470.04318.92
5.4.180.2570.03318.77
5.4.170.2500.03719.07
5.4.160.2600.04018.77
5.4.150.2470.04319.06
5.4.140.2370.03016.32
5.4.130.2500.03016.28
5.4.120.2300.03316.27
5.4.110.2430.04016.06
5.4.100.2370.03016.43
5.4.90.2500.03716.23
5.4.80.2270.03716.34
5.4.70.2500.04016.20
5.4.60.2330.03316.36
5.4.50.2570.03716.31
5.4.40.2670.04016.36
5.4.30.2430.03316.41
5.4.20.2700.03316.14
5.4.10.2370.03316.15
5.4.00.2300.04315.68
5.3.290.2630.04014.51
5.3.280.2270.04014.61
5.3.270.2330.04014.48
5.3.260.2630.04014.46
5.3.250.2370.03014.45
5.3.240.2170.03314.55
5.3.230.2370.03314.64
5.3.220.2570.04714.43
5.3.210.2530.04314.42
5.3.200.2270.04014.51
5.3.190.2570.04314.50
5.3.180.2600.04714.39
5.3.170.2400.04014.42
5.3.160.2330.03714.51
5.3.150.2300.03714.50
5.3.140.2600.03714.39
5.3.130.2630.04714.55
5.3.120.2500.03314.42
5.3.110.2500.05014.53
5.3.100.2970.04013.88
5.3.90.2670.03313.96
5.3.80.2800.04713.89
5.3.70.3000.04013.83
5.3.60.2870.03713.94
5.3.50.2800.04313.79
5.3.40.2900.03313.79
5.3.30.2830.03713.82
5.3.20.2470.04313.70
5.3.10.2500.03713.46
5.3.00.2470.03313.51
5.2.170.2170.03311.03
5.2.160.2170.03310.98
5.2.150.2270.02711.01
5.2.140.2100.03311.15
5.2.130.2270.03710.98
5.2.120.2200.03010.94
5.2.110.2130.02711.17
5.2.100.1670.03311.18
5.2.90.0030.03311.14
5.2.80.0070.06311.14
5.2.70.0200.04710.93
5.2.60.2030.03311.05
5.2.50.2170.02710.90
5.2.40.1830.03010.90
5.2.30.1630.03010.83
5.2.20.1670.02311.12
5.2.10.1800.03310.80
5.2.00.1500.02710.67
5.1.60.1800.02310.00
5.1.50.1500.02310.00
5.1.40.1530.02310.05
5.1.30.1470.03010.24
5.1.20.1700.03310.45
5.1.10.1730.03310.15
5.1.00.1570.0279.95
5.0.50.0730.0238.47
5.0.40.0800.0178.48
5.0.30.1000.0308.20
5.0.20.1030.0278.09
5.0.10.0900.0238.24
5.0.00.0930.0408.39
4.4.90.1030.0177.84
4.4.80.1030.0177.84
4.4.70.0870.0207.84
4.4.60.0970.0137.84
4.4.50.0870.0077.84
4.4.40.0870.0307.84
4.4.30.0970.0277.84
4.4.20.0800.0177.84
4.4.10.0800.0137.84
4.4.00.0770.0277.84
4.3.110.0870.0177.84
4.3.100.0830.0107.84
4.3.90.0800.0137.84
4.3.80.0800.0237.84
4.3.70.0770.0137.84
4.3.60.0770.0177.84
4.3.50.0800.0137.84
4.3.40.0800.0207.84
4.3.30.0370.0177.84
4.3.20.0430.0177.84
4.3.10.0430.0177.84
4.3.00.0430.0137.84

preferences:
40.29 ms | 401 KiB | 5 Q