3v4l.org

run code in 300+ PHP versions simultaneously
<?php class C { private $x=10; } $c = new C; $j = json_encode($c); var_dump(json_decode($j));

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)
8.3.60.0210.00018.31
8.3.50.0110.00716.28
8.3.40.0090.00918.42
8.3.30.0090.00918.54
8.3.20.0040.00421.73
8.3.10.0030.00521.65
8.3.00.0000.00819.54
8.2.180.0120.00616.69
8.2.170.0120.00322.96
8.2.160.0070.00720.55
8.2.150.0000.00724.18
8.2.140.0050.00324.66
8.2.130.0050.00217.91
8.2.120.0080.00026.35
8.2.110.0000.01122.29
8.2.100.0080.00417.78
8.2.90.0040.00419.09
8.2.80.0080.00017.97
8.2.70.0000.00917.63
8.2.60.0050.00317.93
8.2.50.0050.00318.07
8.2.40.0000.00718.16
8.2.30.0070.00017.99
8.2.20.0070.00018.02
8.2.10.0070.00018.00
8.2.00.0070.00017.85
8.1.280.0070.00725.92
8.1.270.0080.00022.03
8.1.260.0000.00826.35
8.1.250.0000.00728.09
8.1.240.0060.00320.58
8.1.230.0110.00017.77
8.1.220.0000.00917.74
8.1.210.0030.00518.77
8.1.200.0060.00317.35
8.1.190.0000.00917.36
8.1.180.0060.00618.10
8.1.170.0000.00918.71
8.1.160.0000.00718.69
8.1.150.0000.00820.13
8.1.140.0040.00417.61
8.1.130.0030.00318.91
8.1.120.0030.00317.37
8.1.110.0040.00417.27
8.1.100.0070.00317.32
8.1.90.0000.00817.40
8.1.80.0040.00417.30
8.1.70.0040.00417.44
8.1.60.0030.00617.50
8.1.50.0000.00817.45
8.1.40.0000.00717.34
8.1.30.0000.00917.53
8.1.20.0030.00617.60
8.1.10.0000.00717.55
8.1.00.0040.00417.41
8.0.300.0030.00519.84
8.0.290.0040.00416.63
8.0.280.0030.00318.28
8.0.270.0030.00517.14
8.0.260.0060.00016.75
8.0.250.0000.00716.92
8.0.240.0040.00416.84
8.0.230.0000.00716.80
8.0.220.0030.00316.83
8.0.210.0050.00316.88
8.0.200.0000.00716.77
8.0.190.0070.00016.82
8.0.180.0000.00816.73
8.0.170.0060.00316.85
8.0.160.0000.00716.82
8.0.150.0040.00416.72
8.0.140.0070.00016.81
8.0.130.0030.00313.28
8.0.120.0030.00516.79
8.0.110.0070.00016.82
8.0.100.0070.00016.76
8.0.90.0040.00416.69
8.0.80.0040.01116.87
8.0.70.0000.00716.62
8.0.60.0040.00416.68
8.0.50.0040.00416.83
8.0.30.0090.00917.05
8.0.20.0070.01117.40
8.0.10.0070.00016.96
8.0.00.0090.00816.61
7.4.330.0000.00515.55
7.4.320.0080.00016.45
7.4.300.0060.00016.48
7.4.290.0000.00716.42
7.4.280.0040.00416.37
7.4.270.0040.00416.52
7.4.260.0000.00716.41
7.4.250.0040.00416.38
7.4.240.0030.00316.43
7.4.230.0030.00316.34
7.4.220.0070.00016.48
7.4.210.0130.00616.43
7.4.200.0070.00016.31
7.4.160.0100.00816.38
7.4.150.0130.00317.40
7.4.140.0060.01117.86
7.4.130.0080.00916.25
7.4.120.0120.00516.43
7.4.110.0120.00416.63
7.4.100.0070.01016.38
7.4.90.0090.01516.40
7.4.80.0080.01119.39
7.4.70.0100.01116.45
7.4.60.0080.00816.32
7.4.50.0000.01816.07
7.4.40.0070.01016.39
7.4.00.0070.01014.54
7.3.330.0000.00513.13
7.3.320.0000.00613.10
7.3.310.0050.00216.27
7.3.300.0030.00316.00
7.3.290.0000.01516.22
7.3.280.0050.01116.10
7.3.270.0140.00517.40
7.3.260.0210.01116.17
7.3.240.0090.00716.21
7.3.230.0030.01416.53
7.3.210.0000.01716.54
7.3.200.0030.01916.37
7.3.190.0060.00916.05
7.3.180.0050.01016.55
7.3.170.0160.00016.23
7.3.160.0030.01216.38
7.2.330.0120.00616.37
7.2.320.0040.01216.58
7.2.310.0030.01716.60
7.2.300.0100.00716.16
7.2.290.0160.00416.30
7.2.60.0100.00716.79
7.2.20.0130.01017.89
7.2.10.0120.01417.65
7.2.00.0080.01417.78
7.1.200.0100.00315.71
7.1.140.0120.01416.98
7.1.130.0120.01316.85
7.1.120.0150.01116.71
7.1.110.0130.01416.33
7.1.100.0130.01416.12
7.1.90.0100.01116.33
7.1.80.0120.01216.03
7.1.70.0090.01215.31
7.1.60.0300.00933.29
7.1.50.0330.01532.78
7.1.40.0350.01332.41
7.1.30.0310.01832.33
7.1.20.0240.02332.91
7.1.10.0110.01014.86
7.1.00.0100.01014.89

preferences:
63.3 ms | 401 KiB | 5 Q