3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match('@^\\$([a-zA-Z_\x7f-\xff]+)$@i','$atuamae'));

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)
8.3.60.0090.00618.36
8.3.50.0120.01022.18
8.3.40.0120.00318.90
8.3.30.0110.00718.75
8.3.20.0050.00318.90
8.3.10.0050.00320.79
8.3.00.0040.00421.73
8.2.180.0070.00716.88
8.2.170.0090.00622.96
8.2.160.0130.00020.38
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0000.00721.12
8.2.110.0050.00520.47
8.2.100.0090.00317.78
8.2.90.0040.00418.88
8.2.80.0040.00417.97
8.2.70.0040.00417.50
8.2.60.0050.00219.21
8.2.50.0090.00018.10
8.2.40.0040.00420.60
8.2.30.0040.00419.03
8.2.20.0040.00417.74
8.2.10.0020.00517.77
8.2.00.0060.00317.61
8.1.280.0150.00025.92
8.1.270.0070.00023.99
8.1.260.0030.00926.35
8.1.250.0040.00428.09
8.1.240.0090.00022.08
8.1.230.0070.00424.00
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0000.00817.23
8.1.180.0060.00318.10
8.1.170.0080.00018.78
8.1.160.0000.00718.66
8.1.150.0070.00021.99
8.1.140.0000.00817.44
8.1.130.0070.00017.71
8.1.120.0030.00317.50
8.1.110.0000.00817.46
8.1.100.0050.00317.43
8.1.90.0000.00717.39
8.1.80.0000.00717.43
8.1.70.0000.00717.44
8.1.60.0040.00417.57
8.1.50.0000.00717.57
8.1.40.0080.00017.43
8.1.30.0040.00417.70
8.1.20.0030.00517.50
8.1.10.0000.00817.42
8.1.00.0070.00017.47
8.0.300.0040.00418.77
8.0.290.0000.00916.75
8.0.280.0030.00518.30
8.0.270.0000.00717.14
8.0.260.0050.00316.88
8.0.250.0040.00417.02
8.0.240.0040.00416.99
8.0.230.0000.00816.98
8.0.220.0030.00316.80
8.0.210.0000.00716.80
8.0.200.0060.00016.95
8.0.190.0030.00316.89
8.0.180.0000.00816.96
8.0.170.0050.00216.95
8.0.160.0000.00816.92
8.0.150.0080.00016.89
8.0.140.0000.00816.77
8.0.130.0000.01013.27
8.0.120.0040.00416.93
8.0.110.0000.00816.82
8.0.100.0040.00416.82
8.0.90.0000.00716.79
8.0.80.0060.00916.86
8.0.70.0050.00316.73
8.0.60.0050.00316.74
8.0.50.0000.00716.87
8.0.30.0040.01416.92
8.0.20.0110.01017.40
8.0.10.0070.00017.03
8.0.00.0110.00616.68
7.4.330.0050.00014.78
7.4.320.0000.00616.69
7.4.300.0000.00616.66
7.4.290.0030.00316.66
7.4.280.0030.00616.48
7.4.270.0030.00316.50
7.4.260.0000.00613.34
7.4.250.0040.00416.54
7.4.240.0000.00716.62
7.4.230.0070.00016.54
7.4.220.0060.01216.65
7.4.210.0070.00816.59
7.4.200.0000.00716.43
7.4.190.0030.00616.80
7.4.160.0090.00616.44
7.4.150.0150.00617.40
7.4.140.0080.00917.86
7.4.130.0060.01116.55
7.4.120.0070.01316.49
7.4.110.0100.00716.53
7.4.100.0110.01216.59
7.4.90.0140.01016.70
7.4.80.0160.00319.39
7.4.70.0100.00616.53
7.4.60.0100.00616.51
7.4.50.0060.00316.33
7.4.40.0060.00922.77
7.4.30.0100.00716.47
7.4.00.0090.00614.88
7.3.330.0000.00513.03
7.3.320.0000.00513.13
7.3.310.0070.00016.33
7.3.300.0040.00416.18
7.3.290.0040.01116.33
7.3.280.0070.00916.30
7.3.270.0160.00417.40
7.3.260.0070.01118.24
7.3.250.0180.00216.55
7.3.240.0070.01016.59
7.3.230.0070.01016.39
7.3.210.0110.00716.28
7.3.200.0100.01319.39
7.3.190.0100.01316.38
7.3.180.0140.00616.38
7.3.170.0120.00416.64
7.3.160.0090.00616.54
7.3.120.0060.00614.81
7.2.330.0000.01716.61
7.2.320.0160.00616.66
7.2.310.0100.01316.54
7.2.300.0060.01016.69
7.2.290.0140.00316.46
7.2.00.0130.00319.49
7.1.100.0030.01018.01
7.1.70.0040.01117.39
7.1.60.0120.01219.40
7.1.50.0120.01216.94
7.1.00.0000.03722.50
7.0.200.0100.00316.93
7.0.140.0000.07322.10
7.0.110.0030.04320.09
7.0.100.0070.08019.95
7.0.90.0130.05319.96
7.0.80.0070.08720.02
7.0.70.0070.04319.93
7.0.60.0100.07320.02
7.0.50.0400.04319.88
7.0.40.0100.05319.72
7.0.30.0000.04719.79
7.0.20.0030.04019.71
7.0.10.0030.04019.85
7.0.00.0030.04319.84
5.6.280.0030.07321.11
5.6.260.0030.05320.62
5.6.250.0030.08020.60
5.6.240.0070.04020.58
5.6.230.0030.04020.59
5.6.220.0070.06720.70
5.6.210.0070.05720.39
5.6.200.0030.03720.65
5.6.190.0030.04720.58
5.6.180.0100.09720.85
5.6.170.0000.04020.69
5.6.160.0030.04020.63
5.6.150.0030.04320.63
5.6.140.0000.04320.70
5.6.130.0100.02720.54
5.6.120.0100.04020.67
5.6.110.0130.07020.68
5.6.100.0030.06020.54
5.6.90.0130.04020.59
5.6.80.0100.03019.93
5.6.70.0070.06019.97
5.6.60.0030.07019.95
5.6.50.0130.06019.84
5.6.40.0000.06019.99
5.6.30.0170.06719.82
5.6.20.0070.06320.04
5.6.10.0100.04720.03
5.6.00.0100.07319.90
5.5.380.0000.05717.52
5.5.370.0070.06717.58
5.5.360.0100.03017.59
5.5.350.0000.09017.66
5.5.340.0030.04718.03
5.5.330.0070.05718.25
5.5.320.0030.04018.12
5.5.310.0030.05318.10
5.5.300.0070.04317.89
5.5.290.0070.04018.16
5.5.280.0070.03018.16
5.5.270.0130.07018.09
5.5.260.0100.06318.12
5.5.250.0130.06017.66
5.5.240.0000.08317.23
5.5.230.0070.03717.28
5.5.220.0070.03717.50
5.5.210.0030.07317.63
5.5.200.0070.06717.51
5.5.190.0070.07017.33
5.5.180.0070.08017.45
5.5.160.0100.07017.49
5.5.150.0070.05717.33
5.5.140.0030.08717.35
5.5.130.0070.06717.24
5.5.120.0070.03717.24
5.5.110.0000.06317.47
5.5.100.0130.06717.39
5.5.90.0030.05017.11
5.5.80.0030.06717.38
5.5.70.0030.04317.09
5.5.60.0070.03317.38
5.5.50.0000.04017.26
5.5.40.0070.03717.13
5.5.30.0030.08017.36
5.5.20.0070.04317.10
5.5.10.0070.07317.48
5.5.00.0030.04717.36
5.4.450.0070.03019.33
5.4.440.0030.04019.33
5.4.430.0070.03719.41
5.4.420.0070.03019.48
5.4.410.0100.07319.23
5.4.400.0170.06018.95
5.4.390.0130.05319.03
5.4.380.0030.05319.03
5.4.370.0070.07019.11
5.4.360.0030.04719.02
5.4.350.0130.05319.10
5.4.340.0030.07018.98
5.4.320.0130.03318.93
5.4.310.0070.06719.25
5.4.300.0000.04719.02
5.4.290.0000.04719.01
5.4.280.0000.04319.25
5.4.270.0070.03718.98
5.4.260.0000.04319.17
5.4.250.0030.04019.16
5.4.240.0100.05019.26
5.4.230.0030.06719.17
5.4.220.0000.05719.09
5.4.210.0030.05319.28
5.4.200.0070.04019.00
5.4.190.0070.04318.99
5.4.180.0030.04719.17
5.4.170.0070.03718.92
5.4.160.0070.06019.14
5.4.150.0070.04718.93
5.4.140.0030.05716.20
5.4.130.0130.04316.25
5.4.120.0100.06016.21
5.4.110.0030.05716.36
5.4.100.0000.08016.53
5.4.90.0100.04016.51
5.4.80.0170.06716.38
5.4.70.0000.04716.34
5.4.60.0070.07016.26
5.4.50.0070.06316.38
5.4.40.0030.05016.31
5.4.30.0000.04716.34
5.4.20.0070.04716.32
5.4.10.0100.06316.48
5.4.00.0070.06715.90
5.3.290.0030.05314.49
5.3.280.0100.03014.42
5.3.270.0000.05014.47
5.3.260.0100.05714.62
5.3.250.0030.07714.50
5.3.240.0100.04714.48
5.3.230.0100.07314.59
5.3.220.0070.04014.44
5.3.210.0070.05314.55
5.3.200.0030.05014.46
5.3.190.0070.06314.57
5.3.180.0000.03714.46
5.3.170.0000.05714.44
5.3.160.0030.06014.55
5.3.150.0130.05314.62
5.3.140.0130.03714.34
5.3.130.0100.06314.37
5.3.120.0070.04314.56
5.3.110.0130.06714.46
5.3.100.0100.03713.86
5.3.90.0070.04014.13
5.3.80.0030.07713.94
5.3.70.0030.06714.02
5.3.60.0070.04013.89
5.3.50.0070.05314.00
5.3.40.0070.03713.86
5.3.30.0000.04313.82
5.3.20.0070.03313.62
5.3.10.0000.03713.58
5.3.00.0070.06013.64
5.2.170.0070.06012.08
5.2.160.0070.05012.08
5.2.150.0030.03712.08
5.2.140.0030.03012.08
5.2.130.0030.02712.08
5.2.120.0000.03012.08
5.2.110.0000.04012.08
5.2.100.0000.03012.08
5.2.90.0030.02012.08
5.2.80.0000.03012.08
5.2.70.0000.06312.08
5.2.60.0030.02712.08
5.2.50.0030.03312.08
5.2.40.0030.03012.08
5.2.30.0000.03012.08
5.2.20.0100.02312.08
5.2.10.0030.05312.08
5.2.00.0000.04312.08
5.1.60.0070.02012.08
5.1.50.0000.04712.08
5.1.40.0000.03712.08
5.1.30.0030.04012.08
5.1.20.0000.03712.08
5.1.10.0030.03312.08
5.1.00.0000.03012.08
5.0.50.0070.02012.08
5.0.40.0000.02012.08
5.0.30.0030.04712.08
5.0.20.0070.01312.08
5.0.10.0000.02012.08
5.0.00.0000.03312.08
4.4.90.0000.03012.08
4.4.80.0030.01312.08
4.4.70.0030.01312.08
4.4.60.0000.03712.08
4.4.50.0000.01712.08
4.4.40.0070.05012.08
4.4.30.0030.02712.08
4.4.20.0030.01312.08
4.4.10.0000.01712.08
4.4.00.0000.02312.08
4.3.110.0030.01312.08
4.3.100.0000.01312.08
4.3.90.0000.01312.08
4.3.80.0000.02312.08
4.3.70.0000.01712.08
4.3.60.0070.03012.08
4.3.50.0030.02712.08
4.3.40.0000.02312.08
4.3.30.0000.01312.08
4.3.20.0000.03012.08
4.3.10.0000.02712.08
4.3.00.0030.01712.08

preferences:
51.12 ms | 401 KiB | 5 Q