3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern = '/.*(?<!%)([A-Z0-9])?[A-Z]+.*/'; $string = 'a%C3%B1o'; $res = preg_match ( $pattern, $string, $result ); var_dump( $res, $result );

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)
8.3.60.0110.00418.55
8.3.50.0130.01021.14
8.3.40.0150.00018.79
8.3.30.0090.00618.92
8.3.20.0040.00420.25
8.3.10.0040.00422.11
8.3.00.0070.00022.43
8.2.180.0180.01116.63
8.2.170.0090.00922.96
8.2.160.0160.00619.25
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0090.00026.16
8.2.120.0080.00019.48
8.2.110.0120.00822.10
8.2.100.0070.00419.57
8.2.90.0000.00819.05
8.2.80.0040.00417.97
8.2.70.0040.00417.75
8.2.60.0040.00417.80
8.2.50.0060.00318.07
8.2.40.0080.00020.07
8.2.30.0070.00017.95
8.2.20.0050.00217.66
8.2.10.0000.00717.89
8.2.00.0030.00617.69
8.1.280.0130.00925.92
8.1.270.0050.00322.06
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00023.77
8.1.230.0070.00419.08
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0060.00317.48
8.1.190.0050.00317.18
8.1.180.0050.00318.61
8.1.170.0030.00618.64
8.1.160.0050.00322.07
8.1.150.0030.00618.71
8.1.140.0040.00417.59
8.1.130.0040.00417.95
8.1.120.0000.00717.57
8.1.110.0000.00817.46
8.1.100.0040.00417.44
8.1.90.0070.00017.51
8.1.80.0040.00417.54
8.1.70.0070.00017.43
8.1.60.0060.00317.64
8.1.50.0000.00717.52
8.1.40.0040.00417.50
8.1.30.0000.00817.72
8.1.20.0080.00017.73
8.1.10.0000.00817.70
8.1.00.0040.00417.66
8.0.300.0030.00318.77
8.0.290.0000.00717.15
8.0.280.0080.00018.45
8.0.270.0000.00717.20
8.0.260.0000.00716.77
8.0.250.0030.00316.92
8.0.240.0030.00617.04
8.0.230.0030.00317.08
8.0.220.0060.00016.88
8.0.210.0000.00716.97
8.0.200.0050.00316.91
8.0.190.0040.00416.98
8.0.180.0000.00716.96
8.0.170.0040.00416.89
8.0.160.0000.00716.91
8.0.150.0070.00016.92
8.0.140.0000.00716.90
8.0.130.0030.00313.29
8.0.120.0080.00016.88
8.0.110.0040.00416.99
8.0.100.0070.00016.78
8.0.90.0040.00416.76
8.0.80.0090.00616.95
8.0.70.0000.00716.93
8.0.60.0050.00216.96
8.0.50.0040.00416.91
8.0.30.0100.01117.25
8.0.20.0090.01117.40
8.0.10.0040.00416.97
8.0.00.0110.00916.86
7.4.330.0050.00015.00
7.4.320.0000.00616.67
7.4.300.0000.00616.59
7.4.290.0040.00416.73
7.4.280.0060.00316.68
7.4.270.0040.00416.60
7.4.260.0080.00316.70
7.4.250.0040.00416.65
7.4.240.0010.00616.63
7.4.230.0030.00316.46
7.4.220.0070.01016.85
7.4.210.0020.01216.73
7.4.200.0040.00416.57
7.4.190.0000.00716.91
7.4.160.0060.00916.58
7.4.150.0070.01117.40
7.4.140.0100.01217.86
7.4.130.0130.00616.61
7.4.120.0050.01216.62
7.4.110.0000.01616.48
7.4.100.0090.01516.43
7.4.90.0140.00416.52
7.4.80.0160.00319.39
7.4.70.0170.00316.59
7.4.60.0110.00516.67
7.4.50.0000.00416.62
7.4.40.0000.01522.77
7.4.30.0240.00916.81
7.4.00.0090.00715.08
7.3.330.0000.00513.18
7.3.320.0030.00313.14
7.3.310.0000.00716.32
7.3.300.0070.00016.28
7.3.290.0070.00716.23
7.3.280.0090.00716.33
7.3.270.0140.00317.40
7.3.260.0070.01116.70
7.3.250.0120.00716.35
7.3.240.0130.00616.27
7.3.230.0170.00916.39
7.3.210.0060.01116.28
7.3.200.0100.00619.39
7.3.190.0060.01516.35
7.3.180.0070.01016.64
7.3.170.0100.00716.39
7.3.160.0130.00316.30
7.3.120.0080.00915.01
7.3.110.0110.00715.00
7.3.100.0060.00614.63
7.3.90.0120.00614.83
7.3.80.0060.00914.96
7.3.70.0090.00615.00
7.3.60.0030.01014.95
7.3.50.0030.00914.89
7.3.40.0070.00714.88
7.3.30.0100.00314.68
7.3.20.0030.00916.76
7.3.10.0000.01316.67
7.3.00.0030.00716.66
7.2.330.0070.01016.74
7.2.320.0130.00616.51
7.2.310.0230.00016.69
7.2.300.0030.01416.60
7.2.290.0070.01016.52
7.2.250.0120.00314.80
7.2.240.0040.01514.87
7.2.230.0070.00714.98
7.2.220.0060.00915.10
7.2.210.0140.00014.91
7.2.200.0100.00014.79
7.2.190.0040.01214.81
7.2.180.0050.00514.83
7.2.170.0100.00315.13
7.2.00.0030.01219.43
7.1.330.0000.01415.96
7.1.320.0120.00015.97
7.1.310.0070.00716.01
7.1.300.0040.00816.02
7.1.290.0030.01315.63
7.1.280.0100.00715.95
7.1.270.0040.01115.83
7.1.260.0040.01115.89
7.1.100.0060.00618.13
7.1.70.0140.00317.30
7.1.60.0100.01319.82
7.1.50.0140.01017.07
7.1.00.0030.07322.32
7.0.200.0060.01016.91
7.0.140.0070.07022.00
7.0.60.0030.05319.93
7.0.50.0070.04017.87
7.0.40.0100.03720.42
7.0.30.0230.05320.11
7.0.20.0170.04320.18
7.0.10.0100.05020.19
7.0.00.0030.05720.34
5.6.280.0070.07020.80
5.6.210.0030.08320.59
5.6.200.0070.07718.08
5.6.190.0170.08320.43
5.6.180.2770.04720.35
5.6.170.0230.04020.54
5.6.160.0070.05320.44
5.6.150.0030.04018.12
5.6.140.0030.05318.06
5.6.130.0100.07718.17
5.6.120.0130.05021.08
5.6.110.0200.07021.00
5.6.100.0130.08320.96
5.6.90.0100.08321.09
5.6.80.0070.05020.35
5.5.350.0030.05020.35
5.5.340.0030.03717.96
5.5.330.0100.08020.36
5.5.320.0230.07020.13
5.5.310.0330.03320.30
5.5.300.0000.06317.91
5.5.290.0070.07018.01
5.5.280.0100.03720.79
5.5.270.0070.05320.96
5.5.260.0130.07720.85
5.5.250.0130.08020.46
5.5.240.0170.02720.27
5.4.450.0830.04019.57
5.4.440.1500.03319.40
5.4.430.1070.03719.42
5.4.420.1230.04019.40
5.4.410.0400.04319.28
5.4.400.1070.05319.08
5.4.390.0900.04719.08
5.4.380.0570.04718.50
5.4.370.0500.08018.65
5.4.360.0530.06718.52
5.4.350.0370.06318.72
5.4.340.0630.06718.57
5.4.320.0060.03712.45
5.4.310.0100.03912.45
5.4.300.0060.03712.45
5.4.290.0030.04112.45
5.4.280.0040.03712.35
5.4.270.0080.04312.35
5.4.260.0130.06018.69
5.4.250.0100.04718.73
5.4.240.0170.05718.68
5.4.230.0030.06018.72
5.4.220.0070.06018.84
5.4.210.0100.05318.83
5.4.200.0230.05318.70
5.4.190.0070.05018.97
5.4.180.0130.07018.97
5.4.170.0070.07718.83
5.4.160.0070.07318.63
5.4.150.0170.07318.81
5.4.140.0070.05016.38
5.4.130.0130.04316.36
5.4.120.0100.04716.16
5.4.110.0130.06316.08
5.4.100.0030.05016.33
5.4.90.0070.04716.23
5.4.80.0070.06316.27
5.4.70.0000.05716.06
5.4.60.0070.05316.36
5.4.50.0030.05316.29
5.4.40.0030.07016.24
5.4.30.0130.05316.22
5.4.20.0100.06716.43
5.4.10.0100.05016.06
5.4.00.0070.04715.80
5.3.290.0060.04112.80
5.3.280.0230.06014.47
5.3.270.0030.06714.46
5.3.260.0070.06014.45
5.3.250.0130.04714.48
5.3.240.0030.05714.46
5.3.230.0000.07714.41
5.3.220.0100.05014.39
5.3.210.0070.05714.48
5.3.200.0100.04714.38
5.3.190.0030.05314.48
5.3.180.0130.04014.38
5.3.170.0130.04014.46
5.3.160.0030.05714.49
5.3.150.0000.08314.32
5.3.140.0100.04714.46
5.3.130.0130.05314.48
5.3.120.0000.06714.41
5.3.110.0070.05014.36
5.3.100.0100.06313.96
5.3.90.0030.05013.98
5.3.80.0070.05014.00
5.3.70.0000.05713.92
5.3.60.0100.04313.92
5.3.50.0130.04713.86
5.3.40.0030.05713.87
5.3.30.0070.04713.84
5.3.20.0030.05013.58
5.3.10.0030.05013.49
5.3.00.0030.05013.54
5.2.170.0070.03711.06
5.2.160.0030.04311.02
5.2.150.0100.05011.02
5.2.140.0000.04311.04
5.2.130.0070.04010.98
5.2.120.0030.04011.01
5.2.110.0030.05711.02
5.2.100.0100.03310.96
5.2.90.0100.04311.00
5.2.80.0100.04311.02
5.2.70.0030.05011.11
5.2.60.0070.05710.97
5.2.50.0130.03010.94
5.2.40.0070.04010.93
5.2.30.0030.04310.88
5.2.20.0000.04710.95
5.2.10.0030.03710.75
5.2.00.0030.04710.77
5.1.60.0000.0379.91
5.1.50.0030.0379.75
5.1.40.0070.04010.05
5.1.30.0100.02710.27
5.1.20.0000.04010.09
5.1.10.0070.03310.01
5.1.00.0030.03710.04
5.0.50.0000.0308.64
5.0.40.0030.0308.36
5.0.30.0000.0478.09
5.0.20.0030.0378.27
5.0.10.0000.0308.10
5.0.00.0000.0508.09
4.4.90.0100.0277.25
4.4.80.0000.0237.25
4.4.70.0070.0177.25
4.4.60.0000.0237.25
4.4.50.0000.0237.25
4.4.40.0030.0307.25
4.4.30.0000.0237.25
4.4.20.0070.0177.25
4.4.10.0030.0237.25
4.4.00.0000.0477.25
4.3.110.0030.0207.25
4.3.100.0070.0237.25
4.3.90.0030.0207.25
4.3.80.0000.0377.25
4.3.70.0070.0177.25
4.3.60.0030.0207.25
4.3.50.0070.0177.25
4.3.40.0030.0407.25
4.3.30.0100.0207.25
4.3.20.0030.0277.25
4.3.10.0030.0277.25
4.3.00.0030.02013.18

preferences:
44.89 ms | 401 KiB | 5 Q