3v4l.org

run code in 300+ PHP versions simultaneously
<?php //echo preg_replace('/(?:(?!dog).)++/', '<$0>', 'where my dog is now?'); echo preg_replace('/((?!ba).)*/', '<$0>', 'aabaabaaaaabbb');

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)
8.3.60.0080.00518.43
8.3.50.0070.01221.21
8.3.40.0070.00719.09
8.3.30.0100.01019.09
8.3.20.0050.00220.38
8.3.10.0040.00422.06
8.3.00.0040.00422.43
8.2.180.0130.00618.54
8.2.170.0120.00922.96
8.2.160.0060.00920.52
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0030.01426.16
8.2.120.0030.00519.67
8.2.110.0090.00022.25
8.2.100.0080.00319.21
8.2.90.0040.00419.27
8.2.80.0040.00419.39
8.2.70.0150.00017.38
8.2.60.0080.00017.80
8.2.50.0080.00018.07
8.2.40.0000.00818.09
8.2.30.0040.00417.90
8.2.20.0000.00717.84
8.2.10.0050.00317.75
8.2.00.0080.00017.76
8.1.280.0110.00425.92
8.1.270.0060.00320.25
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00323.82
8.1.230.0040.00819.16
8.1.220.0080.00017.74
8.1.210.0050.00318.77
8.1.200.0060.00317.36
8.1.190.0030.00517.16
8.1.180.0040.00418.50
8.1.170.0000.00818.68
8.1.160.0040.00422.19
8.1.150.0070.00018.55
8.1.140.0040.00417.45
8.1.130.0030.00317.79
8.1.120.0000.00717.47
8.1.110.0000.00717.35
8.1.100.0030.00417.37
8.1.90.0070.00017.37
8.1.80.0040.00417.36
8.1.70.0030.00317.39
8.1.60.0030.00517.63
8.1.50.0000.00717.51
8.1.40.0070.00017.49
8.1.30.0000.00817.61
8.1.20.0000.00817.68
8.1.10.0030.00617.65
8.1.00.0080.00317.38
8.0.300.0000.00718.77
8.0.290.0000.00816.93
8.0.280.0070.00018.39
8.0.270.0060.00317.21
8.0.260.0030.00316.98
8.0.250.0030.00517.11
8.0.240.0000.00816.95
8.0.230.0030.00317.00
8.0.220.0060.00016.99
8.0.210.0000.00716.92
8.0.200.0030.00316.95
8.0.190.0000.00716.93
8.0.180.0040.00417.00
8.0.170.0000.00816.84
8.0.160.0080.00016.95
8.0.150.0040.00416.86
8.0.140.0060.00316.95
8.0.130.0000.00613.36
8.0.120.0000.00716.90
8.0.110.0000.00716.90
8.0.100.0040.00416.89
8.0.90.0040.00416.95
8.0.80.0100.00616.93
8.0.70.0040.00316.86
8.0.60.0080.00016.99
8.0.50.0030.00516.87
8.0.30.0080.01117.12
8.0.20.0130.00417.40
8.0.10.0070.00017.04
8.0.00.0100.00816.73
7.4.330.0000.00515.00
7.4.320.0060.00016.58
7.4.300.0030.00316.56
7.4.290.0000.00716.57
7.4.280.0030.00316.66
7.4.270.0030.00316.58
7.4.260.0020.00516.55
7.4.250.0040.00416.64
7.4.240.0040.00316.56
7.4.230.0070.00016.65
7.4.220.0100.00716.47
7.4.210.0050.01016.62
7.4.200.0070.00016.72
7.4.190.0030.00316.80
7.4.160.0060.01016.48
7.4.150.0160.01017.40
7.4.140.0120.00617.86
7.4.130.0100.00816.54
7.4.120.0090.00816.77
7.4.110.0060.01616.61
7.4.100.0170.00016.45
7.4.90.0140.00416.75
7.4.80.0110.01319.39
7.4.70.0030.01316.56
7.4.60.0100.00716.36
7.4.50.0000.00516.56
7.4.40.0130.00322.77
7.4.30.0100.01016.55
7.4.00.0070.00915.05
7.3.330.0000.00513.07
7.3.320.0000.00513.07
7.3.310.0030.00316.17
7.3.300.0070.00016.33
7.3.290.0110.00716.38
7.3.280.0110.00416.43
7.3.270.0130.01217.40
7.3.260.0110.00716.56
7.3.250.0120.00516.31
7.3.240.0140.00316.36
7.3.230.0000.02316.68
7.3.210.0100.00816.56
7.3.200.0080.01119.39
7.3.190.0130.01016.30
7.3.180.0030.01216.44
7.3.170.0090.00616.49
7.3.160.0060.00916.39
7.3.120.0080.00714.73
7.3.110.0070.01014.75
7.3.100.0120.00015.13
7.3.90.0070.01115.14
7.3.80.0130.00014.81
7.3.70.0130.00315.00
7.3.60.0040.01214.75
7.3.50.0040.00814.84
7.3.40.0070.01014.93
7.3.30.0090.00614.77
7.3.20.0070.00716.85
7.3.10.0060.00316.67
7.3.00.0100.00316.84
7.2.330.0130.00316.70
7.2.320.0180.00016.45
7.2.310.0110.00616.57
7.2.300.0100.00716.65
7.2.290.0090.00616.54
7.2.250.0000.01315.07
7.2.240.0090.00615.06
7.2.230.0100.01014.97
7.2.220.0030.01314.98
7.2.210.0030.00715.10
7.2.200.0060.00915.16
7.2.190.0100.01015.02
7.2.180.0070.00715.00
7.2.170.0070.00315.01
7.2.110.0150.00516.66
7.2.00.0040.01119.43
7.1.330.0000.01315.87
7.1.320.0070.01015.76
7.1.310.0060.00915.98
7.1.300.0080.01115.84
7.1.290.0080.00516.02
7.1.280.0000.01415.86
7.1.270.0080.00615.71
7.1.260.0030.00615.64
7.1.100.0000.01418.38
7.1.70.0030.00617.00
7.1.60.0040.00719.82
7.1.50.0130.01017.16
7.1.00.0030.03722.41
7.0.200.0070.00316.77
7.0.140.0030.07022.21
7.0.60.0070.07320.01
7.0.50.0070.08017.88
7.0.40.0030.04320.22
7.0.30.0400.04720.22
7.0.20.0370.07720.18
7.0.10.0000.05720.02
7.0.00.0070.08320.14
5.6.280.0070.07020.98
5.6.210.0130.07320.71
5.6.200.0000.07718.08
5.6.190.0030.05720.39
5.6.180.0370.07020.58
5.6.170.0270.06020.41
5.6.160.0100.07020.45
5.6.150.0130.07718.22
5.6.140.0070.08318.12
5.6.130.0100.04318.10
5.6.120.0130.07321.01
5.6.110.0100.06721.11
5.6.100.0030.06020.96
5.6.90.0070.07720.97
5.6.80.0070.03720.39
5.5.350.0230.08020.41
5.5.340.0100.07717.95
5.5.330.0030.04320.23
5.5.320.0330.06020.30
5.5.310.0330.07320.28
5.5.300.0000.04018.00
5.5.290.0130.06718.01
5.5.280.0100.08020.76
5.5.270.0030.08720.85
5.5.260.0170.04320.75
5.5.250.0000.04720.61
5.5.240.0030.08020.25
5.4.450.0570.05019.61
5.4.440.0900.05719.24
5.4.430.0200.06019.23
5.4.420.1200.06019.61
5.4.410.0130.04719.36
5.4.400.0800.04719.25
5.4.390.0770.05319.27
5.4.380.0300.05018.55
5.4.370.0100.05718.71
5.4.360.0100.05318.57
5.4.350.0070.03911.97
5.4.340.0070.03511.96
5.4.320.0060.04112.45
5.4.310.0030.04012.45
5.4.300.0080.04012.45
5.4.290.0040.04012.45
5.4.280.0070.03912.35
5.4.270.0070.03412.34
5.4.260.0050.03812.34
5.4.250.0030.06018.89
5.4.240.0070.05318.93
5.4.230.0070.05718.65
5.4.220.0030.05718.94
5.4.210.0070.05318.93
5.4.200.0030.05318.89
5.4.190.0000.06019.02
5.4.180.0000.06318.73
5.4.170.0130.06718.93
5.4.160.0030.06018.79
5.4.150.0000.06018.78
5.4.140.0100.05016.24
5.4.130.0130.04316.26
5.4.120.0100.05016.45
5.4.110.0070.05316.50
5.4.100.0130.04316.26
5.4.90.0070.05016.36
5.4.80.0100.04316.50
5.4.70.0030.05716.48
5.4.60.0130.04316.34
5.4.50.0000.06016.32
5.4.40.0100.04716.45
5.4.30.0070.06016.33
5.4.20.0030.05016.36
5.4.10.0070.05316.46
5.4.00.0230.04315.65
5.3.290.0080.04512.80
5.3.280.0170.06014.43
5.3.270.0070.05714.30
5.3.260.0100.05314.49
5.3.250.0130.06314.65
5.3.240.0070.05314.65
5.3.230.0230.05714.71
5.3.220.0070.07014.42
5.3.210.0070.05314.44
5.3.200.0100.04714.61
5.3.190.0070.05314.72
5.3.180.0070.06014.42
5.3.170.0130.05314.42
5.3.160.0030.06014.54
5.3.150.0030.08014.71
5.3.140.0170.04314.57
5.3.130.0130.04714.44
5.3.120.0100.05014.46
5.3.110.0130.05014.54
5.3.100.0030.06713.74
5.3.90.0070.05714.16
5.3.80.0000.07314.11
5.3.70.0170.04713.87
5.3.60.0070.04714.01
5.3.50.0030.05313.87
5.3.40.0030.05313.95
5.3.30.0100.04313.95
5.3.20.0030.05013.74
5.3.10.0070.04713.66
5.3.00.0130.04313.41
5.2.170.0100.03711.06
5.2.160.0030.04011.30
5.2.150.0030.04311.23
5.2.140.0170.03011.04
5.2.130.0070.03710.85
5.2.120.0130.03311.19
5.2.110.0100.07011.10
5.2.100.0070.05011.20
5.2.90.0130.06311.11
5.2.80.0000.05011.19
5.2.70.0070.04011.24
5.2.60.0130.03710.81
5.2.50.0130.03310.93
5.2.40.0030.04011.01
5.2.30.0100.03710.98
5.2.20.0070.03710.98
5.2.10.0030.04310.92
5.2.00.0000.04710.87
5.1.60.0030.03710.23
5.1.50.0130.02710.04
5.1.40.0030.0379.74
5.1.30.0200.04010.09
5.1.20.0100.04310.11
5.1.10.0070.0409.96
5.1.00.0100.04310.21
5.0.50.0070.0238.46
5.0.40.0070.0238.46
5.0.30.0030.0578.26
5.0.20.0030.0278.22
5.0.10.0070.0278.18
5.0.00.0030.0408.24
4.4.90.0000.0236.66
4.4.80.0000.0236.66
4.4.70.0030.0206.66
4.4.60.0100.0136.66
4.4.50.0070.0276.66
4.4.40.0070.0306.66
4.4.30.0030.0206.66
4.4.20.0070.0176.66
4.4.10.0030.0236.66
4.4.00.0000.0336.66
4.3.110.0130.0136.66
4.3.100.0070.0176.66
4.3.90.0030.0306.66
4.3.80.0070.0306.66
4.3.70.0000.0206.66
4.3.60.0030.0206.66
4.3.50.0030.0276.66
4.3.40.0030.0406.66
4.3.30.0030.0206.66
4.3.20.0030.0236.66
4.3.10.0000.0236.66
4.3.00.0070.0238.53

preferences:
40.04 ms | 401 KiB | 5 Q