3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = '中國心連心化肥'; // echo strlen(); echo (int) $str[1];

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)
8.3.60.0120.00318.56
8.3.50.0110.00622.06
8.3.40.0040.01118.60
8.3.30.0060.00918.91
8.3.20.0040.00420.16
8.3.10.0060.00321.79
8.3.00.0050.00322.46
8.2.180.0110.00416.50
8.2.170.0040.01122.96
8.2.160.0080.00822.20
8.2.150.0000.00825.66
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0030.00719.48
8.2.110.0160.00622.16
8.2.100.0090.00317.69
8.2.90.0040.00417.63
8.2.80.0000.00817.97
8.2.70.0000.00918.16
8.2.60.0060.00318.22
8.2.50.0000.00818.10
8.2.40.0030.00619.42
8.2.30.0070.00019.25
8.2.20.0070.00017.77
8.2.10.0000.00817.89
8.2.00.0050.00318.03
8.1.280.0120.00425.92
8.1.270.0150.00320.25
8.1.260.0040.00426.35
8.1.250.0090.00028.09
8.1.240.0070.00322.17
8.1.230.0060.00622.75
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0060.00317.25
8.1.190.0030.00617.23
8.1.180.0000.00818.10
8.1.170.0000.00918.50
8.1.160.0000.00718.81
8.1.150.0000.00718.80
8.1.140.0040.00417.25
8.1.130.0030.00317.53
8.1.120.0070.00017.43
8.1.110.0070.00017.39
8.1.100.0000.00717.33
8.1.90.0060.00317.48
8.1.80.0040.00417.32
8.1.70.0030.00317.43
8.1.60.0030.00617.59
8.1.50.0000.00817.43
8.1.40.0030.00517.42
8.1.30.0000.00817.56
8.1.20.0040.00417.48
8.1.10.0080.00017.39
8.1.00.0000.00817.49
8.0.300.0040.00419.63
8.0.290.0040.00416.63
8.0.280.0070.00018.43
8.0.270.0040.00417.20
8.0.260.0000.00617.27
8.0.250.0030.00316.95
8.0.240.0080.00016.90
8.0.230.0060.00316.78
8.0.220.0000.00816.86
8.0.210.0000.00716.70
8.0.200.0030.00316.84
8.0.190.0050.00316.86
8.0.180.0000.00716.83
8.0.170.0040.00416.79
8.0.160.0030.00416.64
8.0.150.0030.00316.72
8.0.140.0050.00216.81
8.0.130.0030.00313.21
8.0.120.0050.00216.75
8.0.110.0040.00416.71
8.0.100.0070.00016.71
8.0.90.0030.00316.82
8.0.80.0090.00616.77
8.0.70.0040.00416.87
8.0.60.0030.00316.85
8.0.50.0070.00016.77
8.0.30.0030.02117.16
8.0.20.0090.00917.40
8.0.10.0030.00316.86
8.0.00.0090.00816.63
7.4.330.0000.00515.07
7.4.320.0000.00616.51
7.4.300.0000.00716.43
7.4.290.0030.00316.61
7.4.280.0040.00416.49
7.4.270.0000.00616.60
7.4.260.0040.00416.51
7.4.250.0000.00716.47
7.4.240.0030.00516.48
7.4.230.0030.00316.59
7.4.220.0030.01316.69
7.4.210.0110.00316.61
7.4.200.0070.00016.50
7.4.160.0080.00816.38
7.4.150.0070.01017.40
7.4.140.0150.00717.86
7.4.130.0100.01016.59
7.4.120.0130.00416.59
7.4.110.0080.00816.31
7.4.100.0120.00916.56
7.4.90.0130.00316.50
7.4.80.0030.01319.39
7.4.70.0120.01216.65
7.4.60.0120.00916.70
7.4.50.0050.00016.71
7.4.40.0130.00316.46
7.4.30.0200.01016.50
7.4.00.0100.00814.74
7.3.330.0000.00613.01
7.3.320.0000.00513.19
7.3.310.0030.00316.07
7.3.300.0030.00316.34
7.3.290.0090.00516.13
7.3.280.0100.01116.18
7.3.270.0100.00717.40
7.3.260.0070.01016.35
7.3.250.0080.00916.32
7.3.240.0060.01016.52
7.3.230.0060.01216.39
7.3.210.0100.00716.36
7.3.200.0090.00919.39
7.3.190.0090.00616.23
7.3.180.0060.00916.23
7.3.170.0080.00816.40
7.3.160.0110.00416.52
7.3.120.0040.01414.77
7.3.110.0100.00714.84
7.3.100.0040.01214.60
7.3.90.0100.00014.77
7.3.80.0030.00614.48
7.3.70.0040.01114.86
7.3.60.0140.00014.69
7.3.50.0000.01114.32
7.3.40.0030.01414.84
7.3.30.0060.00914.67
7.3.20.0040.00816.66
7.3.10.0050.00816.60
7.3.00.0040.00816.62
7.2.330.0070.01016.52
7.2.320.0080.01216.62
7.2.310.0130.00316.58
7.2.300.0090.00616.55
7.2.290.0100.00616.68
7.2.250.0080.01115.03
7.2.240.0090.00314.91
7.2.230.0130.00314.78
7.2.220.0070.00715.18
7.2.210.0060.00315.18
7.2.200.0000.01514.99
7.2.190.0070.00714.70
7.2.180.0040.00915.15
7.2.170.0030.00714.87
7.2.130.0060.01016.80
7.2.120.0100.00016.80
7.2.110.0030.00916.81
7.2.100.0040.00816.93
7.2.90.0050.00516.73
7.2.80.0060.00917.02
7.2.70.0000.01416.84
7.2.60.0060.00316.63
7.2.50.0040.01416.80
7.2.40.0050.00516.91
7.2.30.0070.00316.72
7.2.20.0070.00416.73
7.2.10.0000.01116.99
7.2.00.0100.00316.88
7.1.330.0070.00715.78
7.1.320.0000.00915.91
7.1.310.0070.00715.79
7.1.300.0030.01215.78
7.1.290.0040.01115.71
7.1.280.0070.00715.31
7.1.270.0040.00415.94
7.1.260.0060.01015.68
7.1.250.0130.00315.55
7.1.70.0020.00517.23
7.1.60.0030.01319.59
7.1.50.0060.01316.88
7.1.00.0000.07722.37
7.0.200.0030.00516.73
7.0.60.0000.06019.89
7.0.50.0170.07017.83
7.0.40.0200.06320.20
7.0.30.0400.04320.02
7.0.20.0100.05320.13
7.0.10.0170.08320.01
7.0.00.0030.04320.00
5.6.280.0000.07720.77
5.6.210.0100.03720.70
5.6.200.0030.04718.22
5.6.190.0070.04020.39
5.6.180.4070.04720.66
5.6.170.0300.07720.71
5.6.160.0070.08320.54
5.6.150.0000.05018.17
5.6.140.0070.07318.18
5.6.130.0100.08718.14
5.6.120.0070.04020.97
5.6.110.0070.06721.12
5.6.100.0000.07021.02
5.6.90.0030.04320.99
5.6.80.0100.07320.36
5.6.70.2930.04020.36
5.5.350.0270.06720.46
5.5.340.0030.07318.02
5.5.330.0170.03720.20
5.5.320.0370.03720.18
5.5.310.0300.06720.25
5.5.300.0070.05017.91
5.5.290.0070.05017.90
5.5.280.0070.08320.86
5.5.270.0100.05320.76
5.5.260.0130.08020.84
5.5.250.0070.05320.77
5.5.240.0330.06320.23
5.4.450.0630.05019.59
5.4.440.0630.04719.48
5.4.430.0670.05719.16
5.4.420.0800.05019.57
5.4.410.0670.05719.20
5.4.400.0770.04719.19
5.4.390.0770.05719.18
5.4.380.0770.05719.09
5.4.370.0800.06319.16
5.4.360.0770.06019.21
5.4.350.0770.05719.09
5.4.340.0970.05319.24
5.4.320.0870.05319.12
5.4.310.0830.05019.01
5.4.300.0870.05719.04
5.4.290.1030.06719.25
5.4.280.0700.06319.05
5.4.270.0770.04319.31
5.4.260.0730.06019.18
5.4.250.0930.05319.03
5.4.240.0730.05718.84
5.4.230.0800.05719.10
5.4.220.0770.05019.00
5.4.210.0630.05318.92
5.4.200.0600.05316.89
5.4.190.0470.06718.95
5.4.180.0700.04019.16
5.4.170.0700.04319.05
5.4.160.0630.05319.14
5.4.150.0630.04718.99
5.4.140.0800.03316.38
5.4.130.0530.05016.44
5.4.120.0730.05016.42
5.4.110.0700.05016.41
5.4.100.0830.05016.54
5.4.90.0800.04316.50
5.4.80.0700.05016.52
5.4.70.0800.04716.30
5.4.60.0730.05016.49
5.4.50.0630.04316.39
5.4.40.0570.05316.27
5.4.30.0600.04716.48
5.4.20.0630.04716.34
5.4.10.0600.05316.31
5.4.00.0630.05715.57
5.3.290.0600.05014.64
5.3.280.0600.04714.48
5.3.270.0570.05314.44
5.3.260.0870.04014.61
5.3.250.0770.04714.43
5.3.240.0770.04714.61
5.3.230.0600.05714.42
5.3.220.0670.05714.54
5.3.210.0730.05314.46
5.3.200.0870.03714.50
5.3.190.0870.04714.43
5.3.180.0700.05314.35
5.3.170.0770.04714.56
5.3.160.0800.04314.36
5.3.150.0700.05314.45
5.3.140.0770.05014.46
5.3.130.0830.04314.38
5.3.120.0770.05314.48
5.3.110.0800.04314.43
5.3.100.0930.06013.95
5.3.90.0670.05713.86
5.3.80.0630.04714.00
5.3.70.0830.04013.80
5.3.60.0600.06314.00
5.3.50.0770.05013.77
5.3.40.0630.04713.95
5.3.30.0600.05013.78
5.3.20.0670.05313.48
5.3.10.0570.05013.46
5.3.00.0570.05313.57
5.2.170.0470.04311.14
5.2.160.0470.04011.23
5.2.150.0600.03011.06
5.2.140.0470.04311.05
5.2.130.0470.04011.01
5.2.120.0470.04010.95
5.2.110.0530.04010.93
5.2.100.0500.04011.18
5.2.90.0470.04011.01
5.2.80.0500.04011.04
5.2.70.0470.04311.18
5.2.60.0530.03710.88
5.2.50.0470.04310.84
5.2.40.0330.05010.89
5.2.30.0470.03310.88
5.2.20.0400.04010.79
5.2.10.0400.03710.78
5.2.00.0400.03710.63
5.1.60.0370.0339.96
5.1.50.0370.0339.87
5.1.40.0370.0379.81
5.1.30.0430.03710.39
5.1.20.0370.04010.40
5.1.10.0430.03310.10
5.1.00.0330.0409.90
5.0.50.0200.0338.46
5.0.40.0300.0278.28
5.0.30.0230.0438.27
5.0.20.0300.0208.35
5.0.10.0270.0238.14
5.0.00.0270.0408.02
4.4.90.0230.0205.75
4.4.80.0230.0205.73
4.4.70.0200.0235.71
4.4.60.0270.0175.82
4.4.50.0300.0205.78
4.4.40.0270.0305.73
4.4.30.0230.0235.74
4.4.20.0230.0205.89
4.4.10.0200.0235.88
4.4.00.0230.0335.93
4.3.110.0200.0235.68
4.3.100.0270.0175.79
4.3.90.0300.0135.67
4.3.80.0230.0275.77
4.3.70.0200.0175.67
4.3.60.0200.0205.66
4.3.50.0030.0235.63
4.3.40.0070.0275.74
4.3.30.0070.0174.53
4.3.20.0030.0204.53
4.3.10.0000.0234.48
4.3.00.0100.0237.28

preferences:
59.61 ms | 401 KiB | 5 Q