3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo mb_strlen("안녕", "utf-16"); echo strlen("안녕");

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)
8.3.60.0150.00716.24
8.3.50.0060.00918.10
8.3.40.0090.00618.76
8.3.30.0070.00718.48
8.3.20.0000.00818.65
8.3.10.0040.00418.52
8.3.00.0050.00319.13
8.2.180.0170.00318.29
8.2.170.0100.00722.96
8.2.160.0150.00318.96
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0000.00819.54
8.2.110.0000.00920.48
8.2.100.0090.00317.91
8.2.90.0040.00419.21
8.2.80.0040.00417.97
8.2.70.0040.00417.63
8.2.60.0000.00818.04
8.2.50.0000.00918.07
8.2.40.0030.00519.38
8.2.30.0070.00417.70
8.2.20.0030.00617.63
8.2.10.0070.00017.48
8.2.00.0060.00317.61
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0090.00020.86
8.1.230.0070.00418.91
8.1.220.0040.00417.74
8.1.210.0090.00018.77
8.1.200.0040.00417.23
8.1.190.0050.00317.23
8.1.180.0060.00318.10
8.1.170.0030.00618.73
8.1.160.0040.00418.94
8.1.150.0060.00318.47
8.1.140.0020.00517.31
8.1.130.0060.00319.18
8.1.120.0000.00717.41
8.1.110.0000.00717.27
8.1.100.0040.00417.41
8.1.90.0080.00017.32
8.1.80.0070.00017.29
8.1.70.0070.00017.27
8.1.60.0050.00217.51
8.1.50.0000.00717.43
8.1.40.0000.00717.41
8.1.30.0040.00417.40
8.1.20.0060.00617.55
8.1.10.0040.00417.54
8.1.00.0050.00517.43
8.0.300.0040.00418.77
8.0.290.0110.00016.63
8.0.280.0030.00618.50
8.0.270.0000.00717.12
8.0.260.0000.00816.86
8.0.250.0000.01016.98
8.0.240.0040.00416.94
8.0.230.0000.00716.80
8.0.220.0000.00816.69
8.0.210.0030.00316.82
8.0.200.0000.00616.94
8.0.190.0000.00716.88
8.0.180.0040.00416.75
8.0.170.0030.00616.80
8.0.160.0070.00016.71
8.0.150.0040.00416.82
8.0.140.0000.00716.75
8.0.130.0000.00613.29
8.0.120.0000.00916.77
8.0.110.0040.00416.77
8.0.100.0070.00016.92
8.0.90.0000.00716.76
8.0.80.0070.01416.80
8.0.70.0000.00716.82
8.0.60.0030.00616.76
8.0.50.0000.00816.88
8.0.30.0070.01117.17
8.0.20.0060.01416.91
8.0.10.0000.00716.79
8.0.00.0100.00716.77
7.4.330.0000.00512.93
7.4.320.0000.00616.29
7.4.300.0000.00616.40
7.4.290.0030.00816.49
7.4.280.0040.00316.39
7.4.270.0050.00316.52
7.4.260.0050.00013.09
7.4.250.0040.00416.55
7.4.240.0030.00316.29
7.4.230.0000.00716.58
7.4.220.0070.01016.49
7.4.210.0030.01316.46
7.4.200.0000.00716.17
7.4.190.0000.00816.30
7.4.160.0090.00616.55
7.4.150.0090.01216.25
7.4.140.0180.01117.86
7.4.130.0210.00516.57
7.4.120.0100.00816.48
7.4.110.0120.01216.43
7.4.100.0050.01116.41
7.4.90.0150.00916.34
7.4.80.0130.00319.39
7.4.70.0060.01016.49
7.4.60.0130.00316.50
7.4.50.0000.00616.55
7.4.40.0060.01316.19
7.4.30.0090.00816.55
7.4.00.0120.00514.83
7.3.330.0060.00013.11
7.3.320.0070.00013.08
7.3.310.0040.00416.18
7.3.300.0030.00316.09
7.3.290.0120.00416.21
7.3.280.0090.01216.29
7.3.270.0090.00816.25
7.3.260.0090.00916.16
7.3.240.0090.00616.29
7.3.230.0060.00916.20
7.3.210.0150.00916.34
7.3.200.0130.00616.13
7.3.190.0070.01016.25
7.3.180.0110.00716.18
7.3.170.0150.00316.28
7.3.160.0120.00416.45
7.3.120.0080.00614.64
7.3.110.0050.01214.60
7.3.100.0050.01114.71
7.3.90.0050.00914.74
7.3.80.0000.01214.73
7.3.70.0020.01014.70
7.3.60.0050.00714.82
7.3.50.0080.00714.71
7.3.40.0030.01014.68
7.3.30.0070.00514.73
7.3.20.0050.00916.54
7.3.10.0120.00316.64
7.3.00.0080.00516.55
7.2.330.0160.00316.54
7.2.320.0090.01116.25
7.2.310.0140.00716.24
7.2.300.0060.01216.46
7.2.290.0030.01516.57
7.2.250.0040.01114.66
7.2.240.0050.00814.75
7.2.230.0040.01015.08
7.2.220.0030.01315.04
7.2.210.0050.00814.91
7.2.200.0040.01114.72
7.2.190.0070.00614.73
7.2.180.0080.00714.72
7.2.170.0040.00914.88
7.2.160.0000.01515.05
7.2.150.0110.00316.77
7.2.140.0090.00616.75
7.2.130.0080.00416.59
7.2.120.0030.00916.49
7.2.110.0060.00616.80
7.2.100.0030.00616.71
7.2.90.0060.00316.80
7.2.80.0060.00616.75
7.2.70.0040.00816.78
7.2.60.0030.01016.70
7.2.50.0060.00616.36
7.2.40.0000.00916.70
7.2.30.0030.00916.46
7.2.20.0040.00416.67
7.2.10.0000.01117.03
7.2.00.0050.00917.90
7.1.330.0050.00715.55
7.1.320.0070.00815.73
7.1.310.0040.00615.63
7.1.300.0080.00415.57
7.1.290.0090.00315.64
7.1.280.0020.00815.52
7.1.270.0020.01015.73
7.1.260.0030.00915.60
7.1.250.0030.01015.62
7.1.100.0170.00515.94
7.1.70.0070.00317.00
7.1.60.0090.00619.25
7.1.50.0030.00716.78
7.1.00.0000.03722.33
7.0.200.0050.00216.66
7.0.140.0070.07022.18
7.0.120.0070.05722.09
7.0.60.0130.06719.96
7.0.50.0000.05017.78
7.0.40.0030.08020.19
7.0.30.0070.06720.04
7.0.20.0000.08720.24
7.0.10.0030.08020.09
7.0.00.0070.08019.95
5.6.280.0000.07721.06
5.6.210.0030.05320.71
5.6.200.0030.04318.16
5.6.190.0070.08720.42
5.6.180.0000.08720.43
5.6.170.0130.07720.76
5.6.160.0100.07320.76
5.6.150.0030.08720.43
5.6.140.0000.09320.37
5.6.130.0070.07320.27
5.6.120.0030.08320.16
5.6.110.0000.09020.31
5.6.100.0030.08020.16
5.6.90.0030.07020.25
5.6.80.0030.07319.73
5.6.70.0030.08319.78
5.6.60.0070.08019.50
5.6.50.0030.08319.84
5.6.40.0030.05319.72
5.6.30.0030.07719.48
5.6.20.0030.07019.77
5.6.10.0070.08019.70
5.6.00.0030.07719.73
5.5.350.0070.06320.31
5.5.340.0030.04318.02
5.5.330.0030.09020.42
5.5.320.0070.06020.20
5.5.310.0100.07720.22
5.5.300.0030.07720.23
5.5.290.0030.08719.92
5.5.280.0070.08019.92
5.5.270.0100.06719.89
5.5.260.0000.08719.95
5.5.250.0030.06320.00
5.5.240.0030.08319.36
5.5.230.0070.05319.49
5.5.220.0070.07019.29
5.5.210.0070.07019.63
5.5.200.0070.08019.52
5.5.190.0070.08019.49
5.5.180.0100.07319.47
5.5.160.0100.06319.32
5.5.150.0030.08319.49
5.5.140.0070.07719.49
5.5.130.0000.08319.45
5.5.120.0000.08019.27
5.5.110.0030.07019.41
5.5.100.0000.07719.35
5.5.90.0030.07019.15
5.5.80.0070.07319.32
5.5.70.0030.08319.41
5.5.60.0070.07019.44
5.5.50.0070.08019.46
5.5.40.0070.05719.48
5.5.30.0100.07319.40
5.5.20.0070.07319.46
5.5.10.0000.07319.27
5.5.00.0070.07719.19
5.4.450.0130.07019.40
5.4.440.0070.08019.50
5.4.430.0070.07019.47
5.4.420.0030.07319.40
5.4.410.0030.08019.11
5.4.400.0000.04718.79
5.4.390.0030.05719.07
5.4.380.0070.06718.92
5.4.370.0070.07718.78
5.4.360.0070.07318.91
5.4.350.0130.06019.08
5.4.340.0130.06718.91
5.4.320.0000.07319.18
5.4.310.0000.06718.79
5.4.300.0030.07718.91
5.4.290.0070.07319.16
5.4.280.0030.08018.82
5.4.270.0100.06719.17
5.4.260.0070.07719.17
5.4.250.0030.06719.17
5.4.240.0070.06319.17
5.4.230.0070.07018.90
5.4.220.0070.07019.13
5.4.210.0000.07719.07
5.4.200.0070.07018.99
5.4.190.0030.05719.16
5.4.180.0100.07019.16
5.4.170.0070.03319.16
5.4.160.0030.08018.89
5.4.150.0000.04719.12
5.4.140.0000.07016.29
5.4.130.0000.06716.23
5.4.120.0070.07016.23
5.4.110.0070.07316.39
5.4.100.0000.06716.62
5.4.90.0100.06716.40
5.4.80.0000.07716.37
5.4.70.0100.04016.34
5.4.60.0000.06716.30
5.4.50.0000.07316.21
5.4.40.0030.06316.34
5.4.30.0070.06716.59
5.4.20.0030.07316.29
5.4.10.0070.07316.29
5.4.00.0030.07315.91
5.3.290.0030.06714.54
5.3.280.0030.07714.68
5.3.270.0030.07714.54
5.3.260.0000.07714.54
5.3.250.0000.04714.52
5.3.240.0030.07314.56
5.3.230.0030.07714.51
5.3.220.0030.07314.51
5.3.210.0000.08314.53
5.3.200.0000.07714.35
5.3.190.0100.06314.48
5.3.180.0030.07314.53
5.3.170.0030.04014.53
5.3.160.0000.04014.49
5.3.150.0070.07314.43
5.3.140.0000.08714.49
5.3.130.0000.06314.47
5.3.120.0070.07714.36
5.3.110.0000.08314.48
5.3.100.0070.07313.96
5.3.90.0070.07013.80
5.3.80.0030.07013.83
5.3.70.0030.06313.84
5.3.60.0000.07013.91
5.3.50.0000.06013.86
5.3.40.0000.06713.86
5.3.30.0070.06713.84
5.3.20.0070.06313.52
5.3.10.0100.06313.57
5.3.00.0000.05313.56
5.2.170.0030.02711.21
5.2.160.0100.05711.29
5.2.150.0030.05011.07
5.2.140.0070.04711.11
5.2.130.0030.06311.07
5.2.120.0070.05711.27
5.2.110.0000.06310.99
5.2.100.0030.06011.06
5.2.90.0030.06011.00
5.2.80.0000.06310.98
5.2.70.0000.06710.97
5.2.60.0030.05710.94
5.2.50.0000.06710.98
5.2.40.0070.06010.88
5.2.30.0000.04310.79
5.2.20.0000.03710.84
5.2.10.0000.06710.99
5.2.00.0070.06010.75
5.1.60.0030.05310.04
5.1.50.0000.05710.00
5.1.40.0070.0479.98
5.1.30.0030.05010.31
5.1.20.0130.05010.49
5.1.10.0030.05710.02
5.1.00.0030.05710.01
5.0.50.0030.0439.72
5.0.40.0000.0409.72
5.0.30.0000.0609.72
5.0.20.0100.0409.72
5.0.10.0000.0439.72
5.0.00.0070.0479.72
4.4.90.0070.0279.72
4.4.80.0030.0239.72
4.4.70.0030.0339.72
4.4.60.0000.0379.72
4.4.50.0000.0379.72
4.4.40.0000.0579.72
4.4.30.0030.0339.72
4.4.20.0000.0379.72
4.4.10.0000.0379.72
4.4.00.0030.0439.72
4.3.110.0030.0239.72
4.3.100.0030.0339.72
4.3.90.0030.0339.72
4.3.80.0030.0539.72
4.3.70.0000.0239.72
4.3.60.0030.0339.72
4.3.50.0030.0339.72
4.3.40.0030.0479.72
4.3.30.0000.0339.72
4.3.20.0030.0339.72
4.3.10.0000.0409.72
4.3.00.0000.0379.72

preferences:
64.74 ms | 400 KiB | 5 Q