3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match("//u", "\xF0A0808B", $matches)); var_dump(preg_match("//u", "𠀋", $matches)); var_dump($matches); var_dump("\xF0A0808B" == "𠀋");

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)
8.3.60.0100.01016.75
8.3.50.0100.01122.91
8.3.40.0090.00618.76
8.3.30.0070.00719.09
8.3.20.0080.00020.03
8.3.10.0040.00423.48
8.3.00.0080.00019.38
8.2.180.0170.00316.50
8.2.170.0100.00722.96
8.2.160.0150.00020.41
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0080.00026.16
8.2.120.0080.00021.22
8.2.110.0030.00622.32
8.2.100.0090.00617.78
8.2.90.0040.00718.92
8.2.80.0030.00617.97
8.2.70.0060.00317.75
8.2.60.0000.00917.80
8.2.50.0080.00018.07
8.2.40.0050.00319.88
8.2.30.0070.00017.94
8.2.20.0080.00017.64
8.2.10.0000.00717.87
8.2.00.0030.00517.63
8.1.280.0150.00425.92
8.1.270.0000.00923.95
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0000.00924.02
8.1.230.0070.00419.05
8.1.220.0050.00317.74
8.1.210.0030.00518.77
8.1.200.0060.00617.36
8.1.190.0050.00317.21
8.1.180.0060.00318.10
8.1.170.0040.00418.71
8.1.160.0050.00321.96
8.1.150.0000.00718.82
8.1.140.0080.00017.42
8.1.130.0000.00717.78
8.1.120.0030.00317.46
8.1.110.0040.00417.37
8.1.100.0000.00817.48
8.1.90.0040.00417.48
8.1.80.0000.00717.46
8.1.70.0070.00017.35
8.1.60.0040.00417.52
8.1.50.0050.00317.55
8.1.40.0050.00317.50
8.1.30.0000.00817.57
8.1.20.0030.00717.54
8.1.10.0030.00617.52
8.1.00.0040.00417.52
8.0.300.0040.00418.77
8.0.290.0050.00216.74
8.0.280.0000.00718.33
8.0.270.0030.00317.15
8.0.260.0030.00317.02
8.0.250.0000.00816.99
8.0.240.0050.00216.90
8.0.230.0030.00316.99
8.0.220.0000.00716.97
8.0.210.0070.00016.96
8.0.200.0060.00017.02
8.0.190.0000.00717.02
8.0.180.0070.00016.88
8.0.170.0050.00316.91
8.0.160.0070.00017.04
8.0.150.0000.00816.82
8.0.140.0070.00016.86
8.0.130.0000.00713.39
8.0.120.0090.00016.98
8.0.110.0000.00716.80
8.0.100.0040.00416.83
8.0.90.0040.00416.75
8.0.80.0120.01216.99
8.0.70.0040.00417.00
8.0.60.0070.00016.93
8.0.50.0040.00416.96
8.0.30.0170.00317.17
8.0.20.0120.00617.40
8.0.10.0000.00816.86
8.0.00.0100.01016.67
7.4.330.0020.00215.00
7.4.320.0070.00016.60
7.4.300.0000.00616.47
7.4.290.0030.00316.61
7.4.280.0030.00516.70
7.4.270.0000.00616.61
7.4.260.0000.00716.62
7.4.250.0050.00216.65
7.4.240.0060.00116.53
7.4.230.0000.00716.57
7.4.220.0100.01016.84
7.4.210.0120.00816.84
7.4.200.0050.00216.75
7.4.160.0100.00616.53
7.4.150.0100.00717.40
7.4.140.0070.01017.86
7.4.130.0140.00616.54
7.4.120.0090.00916.57
7.4.110.0120.00616.70
7.4.100.0100.00716.56
7.4.90.0030.01516.65
7.4.80.0070.01019.39
7.4.70.0100.01316.61
7.4.60.0060.01016.38
7.4.50.0040.00016.42
7.4.40.0090.00916.49
7.4.30.0050.01016.52
7.4.00.0070.01015.08
7.3.330.0060.00013.24
7.3.320.0050.00013.18
7.3.310.0000.00816.12
7.3.300.0070.00016.20
7.3.290.0130.00616.31
7.3.280.0060.00916.33
7.3.270.0080.00817.40
7.3.260.0080.01116.54
7.3.250.0120.00816.67
7.3.240.0140.00316.37
7.3.230.0060.01016.40
7.3.210.0120.00616.52
7.3.200.0060.01019.39
7.3.190.0120.00416.47
7.3.180.0040.01216.34
7.3.170.0060.00916.38
7.3.160.0070.00716.51
7.3.10.0000.01716.32
7.3.00.0070.01116.42
7.2.330.0150.00316.53
7.2.320.0130.00316.34
7.2.310.0120.00616.72
7.2.300.0190.00016.62
7.2.290.0110.00516.59
7.2.130.0100.00316.68
7.2.120.0030.01316.64
7.2.110.0140.00416.64
7.2.100.0070.01016.75
7.2.90.0040.01116.86
7.2.80.0110.00016.81
7.2.70.0030.01016.71
7.2.60.0070.00916.78
7.2.50.0140.00616.87
7.2.40.0000.01516.96
7.2.30.0030.00916.88
7.2.20.0160.00316.93
7.2.10.0040.01116.58
7.2.00.0080.00617.01
7.1.250.0090.00515.57
7.1.200.0070.00715.86
7.1.70.0100.00716.83
7.1.60.0000.02219.46
7.1.50.0000.02117.05
7.1.00.0030.07722.41
7.0.200.0050.00316.83
7.0.140.0000.07722.16
7.0.100.0100.07019.92
7.0.90.0170.04019.89
7.0.80.0300.04019.89
7.0.70.0100.07020.10
7.0.60.0100.07319.94
7.0.50.0070.04320.21
7.0.40.0000.05020.03
7.0.30.0030.04320.06
7.0.20.0070.04020.13
7.0.10.0100.06019.97
7.0.00.0070.04020.03
5.6.280.0000.07320.92
5.6.250.0130.07720.54
5.6.240.0100.05720.63
5.6.230.0200.06020.57
5.6.220.0070.07720.44
5.6.210.0070.07720.56
5.6.200.0130.07020.96
5.6.190.0030.04720.99
5.6.180.0070.03721.05
5.6.170.0000.05021.06
5.6.160.0030.04321.05
5.6.150.0070.04321.01
5.6.140.0070.04020.95
5.6.130.0070.06721.17
5.6.120.0100.03720.96
5.6.110.0030.04320.96
5.6.100.0100.03320.95
5.6.90.0100.06720.95
5.6.80.0000.04320.43
5.6.70.0030.04020.43
5.6.60.0030.04020.37
5.6.50.0030.04320.36
5.6.40.0070.04320.44
5.6.30.0170.05320.32
5.6.20.0030.04720.30
5.6.10.0030.04020.31
5.6.00.0030.04020.30
5.5.380.0130.07720.31
5.5.370.0030.06720.39
5.5.360.0030.05320.29
5.5.350.0100.05020.31
5.5.340.0070.04720.86
5.5.330.0070.03720.80
5.5.320.0100.03320.88
5.5.310.0100.03720.74
5.5.300.0030.05320.84
5.5.290.0100.03320.88
5.5.280.0000.05020.77
5.5.270.0100.03320.81
5.5.260.0030.06320.82
5.5.250.0070.05020.63
5.5.240.0070.03720.25
5.5.230.0030.04720.23
5.5.220.0000.04320.15
5.5.210.0030.04020.26
5.5.200.0030.04019.94
5.5.190.0030.04020.20
5.5.180.0070.04020.16
5.5.160.0030.04020.07
5.5.150.0030.03720.04
5.5.140.0030.06320.17
5.5.130.0000.04320.05
5.5.120.0070.06020.14
5.5.110.0100.07720.17
5.5.100.0130.06020.03
5.5.90.0000.07320.04
5.5.80.0170.07020.01
5.5.70.0070.07019.98
5.5.60.0070.05020.10
5.5.50.0100.07020.02
5.5.40.0100.07319.96
5.5.30.0030.08020.03
5.5.20.0170.07319.99
5.5.10.0070.08320.05
5.5.00.0070.07319.99
5.4.450.0030.04319.40
5.4.440.0070.05319.18
5.4.430.0070.03719.38
5.4.420.0130.03019.38
5.4.410.0070.03319.23
5.4.400.0030.03718.97
5.4.390.0000.04019.01
5.4.380.0070.03318.90
5.4.370.0070.03319.13
5.4.360.0000.04319.03
5.4.350.0070.03719.12
5.4.340.0070.03719.05
5.4.320.0070.03319.10
5.4.310.0000.04019.05
5.4.300.0070.03319.04
5.4.290.0030.04019.02
5.4.280.0030.03718.80
5.4.270.0030.06318.81
5.4.260.0030.06719.10
5.4.250.0030.07319.13
5.4.240.0070.04318.78
5.4.230.0170.06019.09
5.4.220.0100.07319.14
5.4.210.0000.07718.96
5.4.200.0100.07019.04
5.4.190.0030.04719.06
5.4.180.0030.08019.03
5.4.170.0000.04719.02
5.4.160.0170.06718.95
5.4.150.0100.07019.12
5.4.140.0030.04716.35
5.4.130.0070.06716.23
5.4.120.0100.07016.21
5.4.110.0000.07716.21
5.4.100.0100.05316.26
5.4.90.0100.06716.42
5.4.80.0100.07316.39
5.4.70.0130.06716.25
5.4.60.0070.07716.18
5.4.50.0030.04016.34
5.4.40.0000.05716.41
5.4.30.0000.04316.39
5.4.20.0070.07016.17
5.4.10.0030.03716.18
5.4.00.0000.07715.77
5.3.290.0030.03714.66
5.3.280.0030.04714.57
5.3.270.0100.07714.59
5.3.260.0070.06714.46
5.3.250.0030.05714.47
5.3.240.0130.03314.61
5.3.230.0070.08314.58
5.3.220.0130.06314.55
5.3.210.0030.07714.50
5.3.200.0100.07714.41
5.3.190.0030.05014.55
5.3.180.0070.07314.41
5.3.170.0070.04314.55
5.3.160.0100.06714.38
5.3.150.0030.04314.38
5.3.140.0070.05714.52
5.3.130.0100.07014.53
5.3.120.0000.05014.49
5.3.110.0100.06014.40
5.3.100.0070.07314.03
5.3.90.0100.03714.01
5.3.80.0130.07013.79
5.3.70.0030.07013.81
5.3.60.0070.04714.01
5.3.50.0100.07013.91
5.3.40.0100.07013.94
5.3.30.0000.07713.87
5.3.20.0030.07713.60
5.3.10.0070.04713.51
5.3.00.0070.06313.62
5.2.170.0000.04311.17
5.2.160.0070.06311.11
5.2.150.0070.06311.01
5.2.140.0030.05311.16
5.2.130.0130.05011.02
5.2.120.0030.05711.16
5.2.110.0000.03711.02
5.2.100.0070.05711.14
5.2.90.0070.05711.13
5.2.80.0030.03710.91
5.2.70.0130.05710.96
5.2.60.0070.05710.87
5.2.50.0000.05011.02
5.2.40.0070.06011.05
5.2.30.0030.05710.90
5.2.20.0070.06011.03
5.2.10.0030.06010.91
5.2.00.0000.05010.77
5.1.60.0070.02710.49
5.1.50.0070.03310.49
5.1.40.0070.05310.49
5.1.30.0030.05310.49
5.1.20.0030.03010.49
5.1.10.0000.03310.49
5.1.00.0000.03710.49
5.0.50.0070.04010.49
5.0.40.0030.02310.49
5.0.30.0030.03310.49
5.0.20.0030.04010.49
5.0.10.0070.02710.49
5.0.00.0030.05710.49
4.4.90.0000.02310.49
4.4.80.0030.03310.49
4.4.70.0000.02310.49
4.4.60.0070.03010.49
4.4.50.0000.03710.49
4.4.40.0000.05010.49
4.4.30.0030.02310.49
4.4.20.0030.02310.49
4.4.10.0070.01310.49
4.4.00.0000.05310.49
4.3.110.0070.03010.49
4.3.100.0000.02710.49
4.3.90.0070.03010.49
4.3.80.0000.03010.49
4.3.70.0030.03310.49
4.3.60.0070.02310.49
4.3.50.0070.03010.49
4.3.40.0000.05310.49
4.3.30.0030.03310.49
4.3.20.0070.02310.49
4.3.10.0000.03010.49
4.3.00.0000.02010.49

preferences:
50.07 ms | 400 KiB | 5 Q