3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = '[{"hello":"dolly", "bob":{"a":"is your uncle", "b":"is not your uncle"}}]'; var_dump(strlen($str)); var_dump(strlen(pack('*H', $str)));

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)
8.3.60.0040.01516.75
8.3.50.0090.01221.92
8.3.40.0060.00918.99
8.3.30.0120.00318.71
8.3.20.0110.00420.07
8.3.10.0080.00020.65
8.3.00.0040.00421.80
8.2.180.0090.01218.25
8.2.170.0040.01222.96
8.2.160.0070.00719.29
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0070.00026.16
8.2.120.0040.00420.40
8.2.110.0000.01022.29
8.2.100.0080.00317.79
8.2.90.0080.00319.52
8.2.80.0030.00517.97
8.2.70.0050.00317.63
8.2.60.0090.00017.91
8.2.50.0080.00018.10
8.2.40.0040.00420.44
8.2.30.0040.00419.31
8.2.20.0030.00617.54
8.2.10.0000.00718.13
8.2.00.0040.00417.91
8.1.280.0100.00725.92
8.1.270.0180.00022.15
8.1.260.0110.00026.35
8.1.250.0080.00028.09
8.1.240.0030.00623.86
8.1.230.0040.00722.82
8.1.220.0040.00417.74
8.1.210.0080.00318.77
8.1.200.0030.00617.35
8.1.190.0050.00317.10
8.1.180.0090.00018.10
8.1.170.0030.00518.34
8.1.160.0020.00522.08
8.1.150.0040.00418.82
8.1.140.0000.00819.54
8.1.130.0050.00317.49
8.1.120.0000.00817.27
8.1.110.0050.00317.46
8.1.100.0040.00417.36
8.1.90.0080.00017.38
8.1.80.0000.00817.42
8.1.70.0030.00317.27
8.1.60.0070.00017.52
8.1.50.0000.00817.41
8.1.40.0040.00417.56
8.1.30.0080.00017.61
8.1.20.0040.00417.45
8.1.10.0050.00217.57
8.1.00.0070.00017.45
8.0.300.0040.00421.91
8.0.290.0060.00316.75
8.0.280.0040.00418.40
8.0.270.0040.00416.71
8.0.260.0040.00417.05
8.0.250.0030.00316.96
8.0.240.0080.00016.90
8.0.230.0000.00716.78
8.0.220.0030.00716.85
8.0.210.0030.00616.86
8.0.200.0060.00016.95
8.0.190.0040.00416.91
8.0.180.0000.00716.91
8.0.170.0070.00016.80
8.0.160.0040.00416.87
8.0.150.0030.00716.76
8.0.140.0040.00416.84
8.0.130.0060.00013.30
8.0.120.0050.00216.73
8.0.110.0070.00016.89
8.0.100.0000.00716.89
8.0.90.0050.00216.74
8.0.80.0000.01616.76
8.0.70.0040.00416.91
8.0.60.0040.00416.77
8.0.50.0040.00416.75
8.0.30.0120.00916.88
8.0.20.0050.01317.40
8.0.10.0040.00417.06
8.0.00.0110.00516.81
7.4.330.0030.00316.70
7.4.320.0030.00316.42
7.4.300.0030.00316.41
7.4.290.0040.00416.41
7.4.280.0040.00416.50
7.4.270.0070.00316.52
7.4.260.0070.00016.45
7.4.250.0000.00716.50
7.4.240.0000.00716.34
7.4.230.0070.00016.37
7.4.220.0070.01116.45
7.4.210.0070.00916.49
7.4.200.0030.00316.54
7.4.160.0050.01016.61
7.4.150.0070.01017.40
7.4.140.0120.01017.86
7.4.130.0120.00616.52
7.4.120.0130.00816.50
7.4.110.0150.00316.38
7.4.100.0090.00916.52
7.4.90.0130.00916.45
7.4.80.0100.00719.39
7.4.70.0100.00916.44
7.4.60.0180.00616.38
7.4.50.0000.01816.32
7.4.40.0070.01216.61
7.4.30.0060.01216.78
7.4.00.0100.00315.10
7.3.330.0050.00013.09
7.3.320.0050.00013.18
7.3.310.0020.00516.12
7.3.300.0000.00716.36
7.3.290.0030.00316.20
7.3.280.0100.00916.30
7.3.270.0070.01017.40
7.3.260.0070.01316.41
7.3.250.0130.00616.42
7.3.240.0110.01016.47
7.3.230.0130.00316.43
7.3.210.0090.00916.26
7.3.200.0120.00419.39
7.3.190.0110.01116.31
7.3.180.0070.01016.25
7.3.170.0070.00816.23
7.3.160.0100.00616.25
7.3.10.0080.00516.71
7.3.00.0000.01416.55
7.2.330.0120.00516.49
7.2.320.0030.01316.53
7.2.310.0100.01316.41
7.2.300.0080.00816.46
7.2.290.0170.00016.59
7.2.130.0100.00016.52
7.2.120.0000.00916.69
7.2.110.0060.00616.82
7.2.100.0070.01016.64
7.2.90.0100.00317.03
7.2.80.0060.00616.54
7.2.70.0060.00916.65
7.2.60.0130.00716.77
7.2.50.0030.00616.95
7.2.40.0060.00916.63
7.2.30.0040.00816.59
7.2.20.0060.00316.39
7.2.10.0060.00916.82
7.2.00.0060.01016.81
7.1.250.0060.00615.81
7.1.200.0030.01015.66
7.1.100.0060.00917.69
7.1.70.0040.00417.18
7.1.60.0070.01819.40
7.1.50.0070.01316.83
7.1.00.0030.07722.35
7.0.200.0490.01014.56
7.0.60.0130.04021.71
7.0.50.0100.03317.80
7.0.40.0030.08720.30
7.0.30.0270.07720.12
7.0.20.0200.04320.16
7.0.10.0030.05020.33
7.0.00.0100.08720.16
5.6.280.0030.04021.04
5.6.210.0170.07320.56
5.6.200.0170.05718.23
5.6.190.0070.05320.48
5.6.180.0330.05720.64
5.6.170.0200.04020.38
5.6.160.0070.04720.48
5.6.150.0030.08318.12
5.6.140.0070.08318.21
5.6.130.0100.06718.20
5.6.120.0100.07721.11
5.6.110.0030.06320.97
5.6.100.0070.07021.00
5.6.90.0170.07021.13
5.6.80.0000.09320.52
5.5.350.0170.08020.34
5.5.340.0100.06717.96
5.5.330.0130.07020.56
5.5.320.0470.04320.34
5.5.310.0300.07320.19
5.5.300.0030.04317.97
5.5.290.0030.04018.02
5.5.280.0030.05720.87
5.5.270.0130.06020.75
5.5.260.0030.04020.76
5.5.250.0100.07320.55
5.5.240.0330.06720.27

preferences:
46.67 ms | 401 KiB | 5 Q