3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump( mb_check_encoding( "\xF4\x8F\xBF\xBF", 'UTF-8' ) );

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)
8.3.40.0110.00318.71
8.3.30.0070.01018.54
8.3.20.0040.00418.51
8.3.10.0060.00320.41
8.3.00.0080.00017.38
8.2.170.0150.00022.96
8.2.160.0100.00322.21
8.2.150.0000.00725.66
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0060.00319.70
8.2.110.0060.00320.86
8.2.100.0110.00017.78
8.2.90.0060.00320.65
8.2.80.0000.00717.68
8.2.70.0040.00417.38
8.2.60.0000.00817.79
8.2.50.0000.00818.07
8.2.40.0040.00418.22
8.2.30.0040.00417.87
8.2.20.0050.00217.52
8.2.10.0000.00817.56
8.2.00.0030.00717.43
8.1.270.0070.00024.66
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0110.01122.42
8.1.230.0090.00320.96
8.1.220.0030.00617.74
8.1.210.0030.00518.77
8.1.200.0090.00317.11
8.1.190.0040.00417.40
8.1.180.0080.00018.10
8.1.170.0080.00018.91
8.1.160.0040.00418.81
8.1.150.0040.00418.49
8.1.140.0070.00017.38
8.1.130.0000.00717.82
8.1.120.0000.00717.47
8.1.110.0080.00017.37
8.1.100.0070.00017.42
8.1.90.0080.00017.41
8.1.80.0050.00317.42
8.1.70.0040.00417.29
8.1.60.0040.00417.40
8.1.50.0000.00817.36
8.1.40.0040.00417.45
8.1.30.0060.00317.59
8.1.20.0030.00617.53
8.1.10.0000.00717.43
8.1.00.0000.01117.48
8.0.300.0040.00419.97
8.0.290.0070.00016.63
8.0.280.0030.00318.29
8.0.270.0050.00217.16
8.0.260.0030.00316.72
8.0.250.0040.00416.93
8.0.240.0080.00316.77
8.0.230.0000.00616.87
8.0.220.0000.00716.71
8.0.210.0000.00716.78
8.0.200.0080.00016.81
8.0.190.0060.00316.88
8.0.180.0030.00316.76
8.0.170.0040.00416.89
8.0.160.0000.00716.69
8.0.150.0080.00016.70
8.0.140.0090.00316.79
8.0.130.0060.00013.25
8.0.120.0000.00716.68
8.0.110.0000.00716.81
8.0.100.0080.00016.71
8.0.90.0040.00416.68
8.0.80.0070.00716.79
8.0.70.0000.00716.66
8.0.60.0040.00416.93
8.0.50.0030.00316.72
8.0.30.0120.00817.04
8.0.20.0110.00717.06
8.0.10.0040.00416.93
8.0.00.0110.00916.54
7.4.330.0000.00412.86
7.4.320.0030.00316.45
7.4.300.0000.00616.35
7.4.290.0020.00516.46
7.4.280.0000.01116.51
7.4.270.0040.00416.43
7.4.260.0060.00013.21
7.4.250.0000.00816.32
7.4.240.0030.00316.42
7.4.230.0030.00316.54
7.4.220.0120.00616.58
7.4.210.0070.00816.50
7.4.200.0070.00016.24
7.4.190.0020.00516.48
7.4.160.0100.00616.18
7.4.150.0090.00816.11
7.4.140.0120.00716.45
7.4.130.0070.01016.42
7.4.120.0040.01316.40
7.4.110.0130.00916.36
7.4.100.0130.00316.23
7.4.90.0070.01016.59
7.4.80.0200.00416.63
7.4.70.0070.01116.20
7.4.60.0140.00316.36
7.4.50.0070.00016.27
7.4.40.0030.01016.21
7.4.30.0100.00716.38
7.4.00.0060.00814.85
7.3.330.0030.00313.08
7.3.320.0030.00312.97
7.3.310.0030.00316.34
7.3.300.0070.00016.25
7.3.290.0080.00516.21
7.3.280.0060.00816.24
7.3.270.0030.01516.37
7.3.260.0090.00916.27
7.3.250.0100.00816.24
7.3.240.0140.00416.18
7.3.230.0000.01616.28
7.3.210.0060.00916.14
7.3.200.0120.00919.39
7.3.190.0040.01816.20
7.3.180.0060.00916.11
7.3.170.0090.00716.32
7.3.160.0080.00816.39
7.3.120.0080.01014.96
7.3.110.0050.00914.73
7.3.100.0080.00614.63
7.3.90.0070.00814.58
7.3.80.0030.00814.57
7.3.70.0020.01214.69
7.3.60.0050.00914.69
7.3.50.0060.01014.65
7.3.40.0060.00714.46
7.3.30.0080.00514.64
7.3.20.0050.00816.45
7.3.10.0030.00916.43
7.3.00.0040.00916.40
7.2.330.0190.00316.32
7.2.320.0070.01516.57
7.2.310.0100.01016.40
7.2.300.0090.00916.28
7.2.290.0030.01316.41
7.2.250.0070.01314.83
7.2.240.0090.00614.75
7.2.230.0080.01014.95
7.2.220.0050.01014.90
7.2.210.0060.01014.71
7.2.200.0020.00814.88
7.2.190.0050.01014.77
7.2.180.0060.00914.82
7.2.170.0020.01214.89
7.2.160.0070.01014.85
7.2.150.0000.01416.51
7.2.140.0070.00716.29
7.2.130.0030.01116.83
7.2.120.0080.00516.80
7.2.110.0090.00616.82
7.2.100.0040.00916.82
7.2.90.0050.00816.82
7.2.80.0070.00416.69
7.2.70.0080.00216.56
7.2.60.0160.00316.55
7.2.50.0080.00716.66
7.2.40.0060.00616.70
7.2.30.0070.00916.71
7.2.20.0070.00416.72
7.2.10.0090.00516.73
7.2.00.0080.00616.61
7.1.330.0060.00615.74
7.1.320.0070.00715.69
7.1.310.0060.01115.60
7.1.300.0020.01415.64
7.1.290.0060.00615.63
7.1.280.0020.01015.59
7.1.270.0080.00515.72
7.1.260.0020.01415.73
7.1.250.0020.00915.71
7.1.200.0030.01215.75
7.1.70.0000.00717.06
7.1.60.0130.01019.40
7.1.50.0000.02216.53
7.1.00.0030.03322.33
7.0.200.0000.00716.78
7.0.140.0100.06722.12
7.0.120.0000.07722.01
7.0.60.0070.06019.96
7.0.50.0030.07317.85
7.0.40.0030.07020.08
7.0.30.0230.08020.21
7.0.20.0300.07320.13
7.0.10.0070.08020.02
7.0.00.0130.08020.09
5.6.280.0100.06721.14
5.6.210.0070.07020.51
5.6.200.0130.07318.12
5.6.190.0170.08020.40
5.6.180.0230.07720.41
5.6.170.0200.07720.38
5.6.160.0100.08320.54
5.6.150.0170.07018.12
5.6.140.0130.06718.12
5.6.130.0100.07318.18
5.6.120.0070.04720.97
5.6.110.0130.08721.10
5.6.100.0030.05321.03
5.6.90.0100.08721.09
5.6.80.0130.06020.27
5.5.350.0230.03020.45
5.5.340.0100.07717.99
5.5.330.0100.08020.25
5.5.320.0270.07720.13
5.5.310.0130.05020.28
5.5.300.0070.06317.98
5.5.290.0130.04317.89
5.5.280.0030.04320.71
5.5.270.0100.04020.95
5.5.260.0130.06720.64
5.5.250.0100.03320.58
5.5.240.0070.07720.27
5.4.450.0000.04319.48
5.4.440.0030.04019.50
5.4.430.0130.03319.46
5.4.420.0130.03319.50
5.4.410.0000.04319.36
5.4.400.0070.04318.79
5.4.390.0100.06719.18
5.4.380.0130.07319.18
5.4.370.0100.06718.79
5.4.360.0030.07319.14
5.4.350.0070.07719.12
5.4.340.0030.08019.04
5.4.320.0100.05719.08
5.4.310.0000.04018.80
5.4.300.0100.06319.17
5.4.290.0070.06019.11
5.4.280.0030.05019.04
5.4.270.0030.08319.14
5.4.260.0070.05018.79
5.4.250.0030.07319.17
5.4.240.0100.07019.11
5.4.230.0100.05319.17
5.4.220.0130.06319.13
5.4.210.0000.04318.91
5.4.200.0070.04719.07
5.4.190.0070.04019.18
5.4.180.0130.06019.14
5.4.170.0000.05719.06
5.4.160.0100.07719.11
5.4.150.0000.04318.89
5.4.140.0100.06316.26
5.4.130.0030.04716.26
5.4.120.0130.04316.21
5.4.110.0030.08016.41
5.4.100.0030.07716.33
5.4.90.0070.07316.61
5.4.80.0000.05316.23
5.4.70.0130.05716.27
5.4.60.0070.06716.34
5.4.50.0000.06016.59
5.4.40.0000.04016.29
5.4.30.0030.08016.25
5.4.20.0100.03316.29
5.4.10.0000.07016.24
5.4.00.0000.04715.68
5.3.290.0070.03714.59
5.3.280.0130.07014.51
5.3.270.0170.07014.50
5.3.260.0000.09014.50
5.3.250.0070.03314.69
5.3.240.0070.06014.54
5.3.230.0130.07314.54
5.3.220.0130.06714.52
5.3.210.0070.04014.51
5.3.200.0000.04314.51
5.3.190.0100.06714.49
5.3.180.0100.07014.38
5.3.170.0000.04714.50
5.3.160.0030.08014.57
5.3.150.0070.07714.35
5.3.140.0030.04014.47
5.3.130.0070.07314.46
5.3.120.0070.07014.46
5.3.110.0100.07714.33
5.3.100.0100.07013.98
5.3.90.0030.06313.99
5.3.80.0070.05013.99
5.3.70.0070.07313.94
5.3.60.0070.07713.98
5.3.50.0100.06713.76
5.3.40.0030.06313.89
5.3.30.0070.07013.69
5.3.20.0170.06013.63
5.3.10.0100.07013.66
5.3.00.0070.07313.45
5.2.170.0070.05711.13
5.2.160.0100.05711.07
5.2.150.0070.06011.04
5.2.140.0000.07011.12
5.2.130.0030.04311.07
5.2.120.0070.06011.03
5.2.110.0100.05711.19
5.2.100.0070.06010.95
5.2.90.0070.06311.06
5.2.80.0070.04311.25
5.2.70.0070.06011.17
5.2.60.0030.05310.89
5.2.50.0070.06310.95
5.2.40.0000.03711.14
5.2.30.0030.06011.04
5.2.20.0000.06710.96
5.2.10.0030.05010.73
5.2.00.0170.04710.75
5.1.60.0070.03010.03
5.1.50.0030.0279.97
5.1.40.0030.04710.04
5.1.30.0130.03310.50
5.1.20.0030.03310.35
5.1.10.0030.0579.96
5.1.00.0070.03310.05
5.0.50.0070.0338.59
5.0.40.0030.0238.41
5.0.30.0000.0378.06
5.0.20.0030.0438.25
5.0.10.0030.0408.14
5.0.00.0030.0578.14
4.4.90.0030.0337.84
4.4.80.0100.0237.84
4.4.70.0070.0337.84
4.4.60.0000.0377.84
4.4.50.0070.0207.84
4.4.40.0000.0337.84
4.4.30.0000.0277.84
4.4.20.0070.0177.84
4.4.10.0070.0107.84
4.4.00.0030.0407.84
4.3.110.0030.0137.84
4.3.100.0030.0337.84
4.3.90.0000.0377.84
4.3.80.0070.0277.84
4.3.70.0030.0307.84
4.3.60.0000.0237.84
4.3.50.0030.0337.84
4.3.40.0030.0477.84
4.3.30.0000.0337.84
4.3.20.0000.0377.84
4.3.10.0030.0377.84
4.3.00.0000.0237.84

preferences:
43.68 ms | 400 KiB | 5 Q