3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(); for ($i = 0; $i < 49096; $i++) $array = array($array); $s = microtime(true); json_encode($array); var_dump(microtime(true) - $s);

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)
7.2.00.0070.01345.58
7.1.100.0720.02033.81
7.1.70.0090.02843.35
7.1.60.0030.01743.37
7.1.50.0130.02743.54
7.1.00.0070.08048.46
7.0.200.0130.02443.10
7.0.140.0170.07748.27
7.0.110.3530.06045.89
7.0.100.1400.05045.91
7.0.90.0170.04345.86
7.0.80.0100.09045.91
7.0.70.3700.05045.78
7.0.60.3670.05045.87
7.0.50.3730.08745.89
7.0.40.0070.04727.93
7.0.30.0200.06327.98
7.0.20.0070.08727.98
7.0.10.0030.05328.00
7.0.00.0070.04727.96
5.6.280.0070.10043.65
5.6.260.0100.07343.36
5.6.250.0100.05043.35
5.6.240.0130.05043.29
5.6.230.0100.05743.44
5.6.220.0130.06043.38
5.6.210.0070.07043.31
5.6.200.0200.04743.29
5.6.190.0100.06043.28
5.6.180.0130.06343.43
5.6.170.0130.05343.34
5.6.160.0170.06043.34
5.6.150.0130.05043.43
5.6.140.0130.07343.42
5.6.130.0070.05343.34
5.6.120.0170.05043.37
5.6.110.0100.08043.35
5.6.100.0100.07343.35
5.6.90.0030.05743.35
5.6.80.0170.08342.72
5.6.70.0130.06342.66
5.6.60.0170.04342.78
5.6.50.0070.05342.77
5.6.40.0100.05042.66
5.6.30.0100.05742.68
5.6.20.0170.05342.57
5.6.10.0070.04342.72
5.6.00.0230.05342.57
5.5.380.0100.09740.38
5.5.370.0200.04040.38
5.5.360.0070.05340.32
5.5.350.0070.05740.38
5.5.340.0230.06740.50
5.5.330.0130.05040.58
5.5.320.0030.07740.73
5.5.310.0230.06340.79
5.5.300.0070.06340.81
5.5.290.0070.04740.86
5.5.280.0130.05040.76
5.5.270.0130.06040.52
5.5.260.0070.08040.66
5.5.250.0130.09740.61
5.5.240.0100.04740.18
5.5.230.0070.07739.86
5.5.220.0100.05739.97
5.5.210.0130.05739.96
5.5.200.0130.04740.15
5.5.190.0030.06040.02
5.5.180.0070.05339.94
5.5.160.0130.06340.11
5.5.150.0100.04040.11
5.5.140.0070.04339.93
5.5.130.0100.05339.85
5.5.120.0170.03340.11
5.5.110.0200.04340.01
5.5.100.0100.04040.05
5.5.90.0070.04740.06
5.5.80.0070.04040.07
5.5.70.0170.06039.74
5.5.60.0130.06340.05
5.5.50.0170.07739.82
5.5.40.0100.05040.04
5.5.30.0170.04340.00
5.5.20.0130.08339.84
5.5.10.0070.05040.03
5.5.00.0100.06740.04
5.4.450.0100.04042.02
5.4.440.0100.08341.99
5.4.430.0130.06342.11
5.4.420.0170.05342.04
5.4.410.0100.07341.91
5.4.400.0100.05741.71
5.4.390.0030.05341.68
5.4.380.0070.05341.66
5.4.370.0170.05041.63
5.4.360.0170.04741.96
5.4.350.0130.05741.68
5.4.340.0130.04341.65
5.4.320.0070.05041.72
5.4.310.0130.09041.55
5.4.300.0130.08341.68
5.4.290.0030.06741.66
5.4.280.0100.06741.66
5.4.270.0100.05041.66
5.4.260.0070.05041.67
5.4.250.0130.04041.67
5.4.240.0170.04041.66
5.4.230.0130.04341.70
5.4.220.0100.06041.96
5.4.210.0070.04341.70
5.4.200.0070.08341.78
5.4.190.0230.05041.63
5.4.180.0070.05341.67
5.4.170.0170.05341.70
5.4.160.0130.04341.64
5.4.150.0230.03741.66
5.4.140.0170.07039.14
5.4.130.0130.04739.18
5.4.120.0100.04739.08
5.4.110.0070.04739.20
5.4.100.0100.09338.94
5.4.90.0100.05338.91
5.4.80.0030.06339.23
5.4.70.0070.05339.08
5.4.60.0030.08038.89
5.4.50.0100.04738.84
5.4.40.0030.05339.14
5.4.30.0070.05039.12
5.4.20.0030.08039.08
5.4.10.0070.04038.84
5.4.00.0170.04038.44
5.3.290.0130.06737.16
5.3.280.0300.03036.90
5.3.270.0030.05736.91
5.3.260.0070.05336.90
5.3.250.0130.06037.07
5.3.240.0200.05036.88
5.3.230.0100.04737.00
5.3.220.0230.08336.73
5.3.210.0170.08036.80
5.3.200.0200.08336.88
5.3.190.0130.09036.87
5.3.180.0070.04736.88
5.3.170.0100.07336.88
5.3.160.0070.07336.83
5.3.150.0100.04336.95
5.3.140.0070.05036.93
5.3.130.0130.04737.04
5.3.120.0070.05037.02
5.3.110.0070.05336.86
5.3.100.0270.05736.43
5.3.90.0070.05036.50
5.3.80.0200.08336.34
5.3.70.0070.06336.44
5.3.60.0100.04736.40
5.3.50.0130.05336.15
5.3.40.0070.06736.18
5.3.30.0170.06336.16
5.3.20.0030.04735.81
5.3.10.0030.04735.54
5.3.00.0130.03735.56
5.2.170.0070.04032.69
5.2.160.0070.04732.69
5.2.150.0170.04732.65
5.2.140.0070.06032.83
5.2.130.0100.04332.61
5.2.120.0030.04332.86
5.2.110.0100.06032.61
5.2.100.0000.05032.64
5.2.90.0200.06032.66
5.2.80.0130.06032.65
5.2.70.0070.05332.60
5.2.60.0100.04032.61
5.2.50.0100.05732.79
5.2.40.0070.05032.55
5.2.30.0100.03732.51
5.2.20.0170.03732.47
5.2.10.0100.03032.61
5.2.00.0030.04332.23
5.1.60.0070.04031.00
5.1.50.0100.07031.01
5.1.40.0070.08030.90
5.1.30.0100.07331.36
5.1.20.0100.08031.43
5.1.10.0070.03730.94
5.1.00.0100.08030.95
5.0.50.0100.09329.66
5.0.40.0100.03729.25
5.0.30.0030.04329.32
5.0.20.0100.02729.12
5.0.10.0170.04029.10
5.0.00.0100.06329.11
4.4.90.0000.04026.71
4.4.80.0070.03326.78
4.4.70.0130.04026.79
4.4.60.0070.03026.69
4.4.50.0000.05326.70
4.4.40.0070.05726.78
4.4.30.0100.04726.69
4.4.20.0200.04326.77
4.4.10.0100.03326.75
4.4.00.0070.06026.73
4.3.110.0130.02026.66
4.3.100.0170.05326.73
4.3.90.0100.03726.66
4.3.80.0000.05026.77
4.3.70.0100.03026.73
4.3.60.0130.03026.71
4.3.50.0030.03726.70
4.3.40.0030.04726.73
4.3.30.0100.06325.59
4.3.20.0030.04725.43
4.3.10.0030.05025.31
4.3.00.0100.05325.52

preferences:
32.7 ms | 401 KiB | 5 Q