3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo mb_strlen("\xF4\x8F\xBF\xBF\xF4\x8F\xBF\xBF\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)
8.3.60.0070.00716.63
8.3.50.0120.00318.07
8.3.40.0060.01618.56
8.3.30.0110.01118.77
8.3.20.0000.00720.21
8.3.10.0070.01121.74
8.3.00.0180.00019.25
8.2.180.0030.01518.05
8.2.170.0060.00922.96
8.2.160.0000.01420.53
8.2.150.0030.01024.18
8.2.140.0150.00324.66
8.2.130.0130.00026.16
8.2.120.0150.00319.07
8.2.110.0100.00721.01
8.2.100.0110.00017.59
8.2.90.0040.00419.12
8.2.80.0040.00417.97
8.2.70.0000.00817.50
8.2.60.0060.00317.93
8.2.50.0030.00618.07
8.2.40.0080.00019.95
8.2.30.0080.00017.84
8.2.20.0040.00417.59
8.2.10.0000.00817.93
8.2.00.0060.00317.58
8.1.280.0110.00325.92
8.1.270.0000.00920.48
8.1.260.0100.00726.35
8.1.250.0070.01028.09
8.1.240.0100.00019.32
8.1.230.0060.00623.98
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0040.00417.22
8.1.190.0040.00417.10
8.1.180.0040.00418.10
8.1.170.0030.00520.24
8.1.160.0030.00521.88
8.1.150.0000.00718.67
8.1.140.0040.00417.31
8.1.130.0000.00717.66
8.1.120.0000.00717.19
8.1.110.0000.00717.35
8.1.100.0030.00317.34
8.1.90.0050.00217.27
8.1.80.0050.00217.25
8.1.70.0030.00317.30
8.1.60.0000.00817.53
8.1.50.0040.00417.51
8.1.40.0040.00417.36
8.1.30.0000.00817.56
8.1.20.0000.00717.51
8.1.10.0000.00817.41
8.1.00.0000.00717.29
8.0.300.0000.00818.77
8.0.290.0000.00816.75
8.0.280.0030.00318.39
8.0.270.0040.00417.16
8.0.260.0100.00017.14
8.0.250.0030.00316.91
8.0.240.0040.00416.96
8.0.230.0030.00316.86
8.0.220.0000.00716.82
8.0.210.0040.00416.70
8.0.200.0000.00616.74
8.0.190.0040.00416.86
8.0.180.0030.00516.84
8.0.170.0000.00816.86
8.0.160.0050.00316.90
8.0.150.0050.00216.66
8.0.140.0000.00716.83
8.0.130.0080.00013.29
8.0.120.0050.00316.63
8.0.110.0040.00416.79
8.0.100.0040.00416.61
8.0.90.0040.00416.70
8.0.80.0060.01016.76
8.0.70.0000.00716.87
8.0.60.0070.00016.76
8.0.50.0040.00416.76
8.0.30.0100.01716.89
8.0.20.0190.01217.40
8.0.10.0030.00516.83
8.0.00.0110.00716.70
7.4.330.0000.00515.03
7.4.320.0000.00616.36
7.4.300.0000.00716.46
7.4.290.0040.00416.37
7.4.280.0070.00016.35
7.4.270.0030.00316.37
7.4.260.0040.00416.39
7.4.250.0080.00016.33
7.4.240.0030.00516.47
7.4.230.0080.00016.44
7.4.220.0090.00916.39
7.4.210.0070.00916.39
7.4.200.0030.00316.21
7.4.160.0090.00616.48
7.4.150.0090.00917.40
7.4.140.0120.00717.86
7.4.130.0070.01016.47
7.4.120.0080.01116.43
7.4.110.0040.01516.57
7.4.100.0070.01116.46
7.4.90.0030.01416.48
7.4.80.0150.00819.39
7.4.70.0090.00916.42
7.4.60.0060.01116.44
7.4.50.0000.00616.37
7.4.40.0150.00916.47
7.4.30.0130.01016.48
7.4.00.0080.00814.81
7.3.330.0000.00512.95
7.3.320.0080.00413.00
7.3.310.0080.00015.99
7.3.300.0040.00416.12
7.3.290.0030.00316.14
7.3.280.0100.00916.10
7.3.270.0140.00817.40
7.3.260.0070.01016.26
7.3.250.0090.00916.47
7.3.240.0150.00416.35
7.3.230.0140.00916.54
7.3.210.0160.00416.39
7.3.200.0040.01419.39
7.3.190.0030.01716.06
7.3.180.0060.00916.31
7.3.170.0100.00616.27
7.3.160.0080.00916.45
7.3.120.0070.01014.84
7.3.110.0090.00914.77
7.3.100.0070.01014.74
7.3.90.0090.00614.71
7.3.80.0060.01014.62
7.3.70.0070.00714.76
7.3.60.0070.00714.68
7.3.50.0080.00814.60
7.3.40.0070.00814.67
7.3.30.0050.00814.52
7.3.20.0070.00516.34
7.3.10.0100.00316.37
7.3.00.0120.00116.54
7.2.330.0070.01116.54
7.2.320.0080.00816.29
7.2.310.0090.01516.51
7.2.300.0060.01816.41
7.2.290.0060.01216.56
7.2.250.0000.01314.95
7.2.240.0080.01014.86
7.2.230.0060.01114.83
7.2.220.0070.00714.78
7.2.210.0050.00814.72
7.2.200.0080.00414.83
7.2.190.0020.01314.62
7.2.180.0000.01414.83
7.2.170.0050.01014.90
7.2.00.0060.00619.34
7.1.330.0050.00915.65
7.1.320.0040.00715.60
7.1.310.0040.01315.60
7.1.300.0070.00715.63
7.1.290.0060.00615.51
7.1.280.0080.00615.65
7.1.270.0050.00815.63
7.1.260.0070.00815.62
7.1.100.0060.00317.82
7.1.70.0080.00016.98
7.1.60.0180.00719.50
7.1.50.0190.01534.69
7.1.00.0070.07022.31
7.0.200.0140.01014.87
7.0.140.0000.07721.92
7.0.60.0100.08319.92
7.0.50.0070.08317.88
7.0.40.0070.04019.98
7.0.30.0230.04720.38
7.0.20.0300.07020.33
7.0.10.0230.05020.30
7.0.00.0070.09020.02
5.6.280.0030.07321.03
5.6.210.0100.06720.73
5.6.200.0030.06318.18
5.6.190.0000.05020.41
5.6.180.0200.06320.24
5.6.170.0270.08320.33
5.6.160.0130.05320.38
5.6.150.0100.07718.11
5.6.140.0030.08018.27
5.6.130.0070.07318.22
5.6.120.0130.07321.14
5.6.110.0100.08020.99
5.6.100.0000.07021.02
5.6.90.0100.07321.09
5.6.80.0070.03720.38
5.6.70.0330.06320.29
5.5.350.0130.08320.41
5.5.340.0030.06717.98
5.5.330.0030.04020.06
5.5.320.0030.05720.43
5.5.310.0300.06720.33
5.5.300.0070.03717.91
5.5.290.0070.06017.91
5.5.280.0100.08320.79
5.5.270.0100.08020.64
5.5.260.0100.04720.87
5.5.250.0200.06320.79
5.5.240.0000.05020.34
5.4.450.0630.05719.52
5.4.440.0300.06019.48
5.4.430.0170.06719.44
5.4.420.0230.04719.47
5.4.410.0100.06019.41
5.4.400.0130.07018.77
5.4.390.0200.05718.72
5.4.380.0170.06318.71
5.4.370.0270.05318.72
5.4.360.0270.04718.50
5.4.350.0270.05718.46
5.4.340.0330.05018.56
5.4.320.0130.06718.48
5.4.310.0270.05718.72
5.4.300.0300.05318.72
5.4.290.0300.05718.77
5.4.280.0200.05718.71
5.4.270.0170.06718.46
5.4.260.0230.05018.52
5.4.250.0270.05018.57
5.4.240.0270.06718.43
5.4.230.0200.05718.76
5.4.220.0300.07318.55
5.4.210.0300.05318.60
5.4.200.0370.04716.46
5.4.190.0300.05018.59
5.4.180.0300.05018.56
5.4.170.0230.05318.72
5.4.160.0430.06318.60
5.4.150.0530.06718.61
5.4.140.0230.05316.17
5.4.130.0330.03716.31
5.4.120.0230.05316.35
5.4.110.0170.05316.14
5.4.100.0300.07016.30
5.4.90.0270.05316.12
5.4.80.0230.05016.04
5.4.70.0270.04716.14
5.4.60.0200.05316.14
5.4.50.0230.05716.11
5.4.40.0230.05316.05
5.4.30.0230.05016.27
5.4.20.0130.07016.01
5.4.10.0170.06716.15
5.4.00.0300.04315.57
5.3.290.0300.07014.63
5.3.280.0230.05314.62
5.3.270.0270.05314.56
5.3.260.0200.08314.69
5.3.250.0400.06014.59
5.3.240.0270.07014.68
5.3.230.0200.06714.66
5.3.220.0470.06014.65
5.3.210.0200.06714.56
5.3.200.0300.04314.54
5.3.190.0230.05014.53
5.3.180.0230.05314.62
5.3.170.0170.06014.57
5.3.160.0230.05314.46
5.3.150.0270.05014.59
5.3.140.0200.06014.46
5.3.130.0200.06314.47
5.3.120.0230.05014.64
5.3.110.0170.07014.45
5.3.100.0200.07014.00
5.3.90.0230.05014.02
5.3.80.0300.04714.09
5.3.70.0170.05313.94
5.3.60.0270.05013.89
5.3.50.0130.06013.89
5.3.40.0270.05013.86
5.3.30.0270.04713.84
5.3.20.0300.06013.67
5.3.10.0330.05713.56
5.3.00.0170.05313.60
5.2.170.0200.03711.05
5.2.160.0200.03711.19
5.2.150.0100.04711.09
5.2.140.0130.04311.20
5.2.130.0230.04011.07
5.2.120.0200.03711.25
5.2.110.0200.03711.11
5.2.100.0130.04011.08
5.2.90.0100.05311.24
5.2.80.0070.05311.07
5.2.70.0200.04311.04
5.2.60.0170.04311.01
5.2.50.0100.05011.17
5.2.40.0130.05310.95
5.2.30.0230.03711.00
5.2.20.0100.05010.91
5.2.10.0200.03710.87
5.2.00.0130.05010.92
5.1.60.0130.03710.08
5.1.50.0200.04710.00
5.1.40.0100.03710.00
5.1.30.0170.03710.38
5.1.20.0070.05710.58
5.1.10.0170.04310.18
5.1.00.0130.04310.14
5.0.50.0070.0378.54
5.0.40.0100.0338.44
5.0.30.0030.0508.20
5.0.20.0100.0308.30
5.0.10.0170.0238.34
5.0.00.0030.0508.37
4.4.90.0100.0237.00
4.4.80.0130.0207.00
4.4.70.0170.0137.00
4.4.60.0070.0307.00
4.4.50.0100.0207.00
4.4.40.0170.0407.00
4.4.30.0100.0277.00
4.4.20.0030.0277.00
4.4.10.0030.0307.00
4.4.00.0230.0337.00
4.3.110.0100.0237.00
4.3.100.0070.0237.00
4.3.90.0070.0237.00
4.3.80.0100.0337.00
4.3.70.0170.0207.00
4.3.60.0100.0277.00
4.3.50.0070.0307.00
4.3.40.0100.0337.00
4.3.30.0030.0277.00
4.3.20.0000.0277.00
4.3.10.0030.0277.00
4.3.00.0100.0207.09

preferences:
39.56 ms | 400 KiB | 5 Q