3v4l.org

run code in 300+ PHP versions simultaneously
<?php $lookup = new StdClass(); $lookup->blah = 12; $name = json_encode($lookup); var_dump($name); $name2 = json_decode($name); var_dump($name2); ?> btw, shorter way to output jsoned $lookup: <?= json_encode($lookup) ?>

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)
8.3.60.0070.01118.46
8.3.50.0070.00718.32
8.3.40.0000.01518.68
8.3.30.0090.00618.72
8.3.20.0040.00418.83
8.3.10.0080.00021.59
8.3.00.0040.00423.48
8.2.180.0110.01116.75
8.2.170.0040.01422.96
8.2.160.0060.00919.13
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0020.00519.82
8.2.120.0080.00026.35
8.2.110.0130.00319.38
8.2.100.0060.00617.72
8.2.90.0000.00818.09
8.2.80.0060.00318.03
8.2.70.0050.00317.93
8.2.60.0080.00418.22
8.2.50.0040.00418.10
8.2.40.0070.00021.05
8.2.30.0080.00019.25
8.2.20.0040.00418.04
8.2.10.0080.00019.43
8.2.00.0030.00319.19
8.1.280.0140.00325.92
8.1.270.0040.00422.02
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0070.00323.81
8.1.230.0070.00422.82
8.1.220.0050.00317.79
8.1.210.0040.00418.77
8.1.200.0040.00417.35
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0040.00418.70
8.1.160.0050.00318.79
8.1.150.0030.00518.73
8.1.140.0000.00819.42
8.1.130.0000.00719.05
8.1.120.0070.00017.44
8.1.110.0020.00517.38
8.1.100.0040.00417.30
8.1.90.0040.00417.37
8.1.80.0050.00317.34
8.1.70.0050.00317.32
8.1.60.0000.00717.49
8.1.50.0060.00617.36
8.1.40.0080.00017.32
8.1.30.0000.00817.43
8.1.20.0040.00417.57
8.1.10.0080.00017.57
8.1.00.0070.00017.53
8.0.300.0020.00519.93
8.0.290.0080.00016.63
8.0.280.0000.00718.32
8.0.270.0030.00317.25
8.0.260.0030.00317.25
8.0.250.0000.00716.96
8.0.240.0030.00316.94
8.0.230.0100.00016.84
8.0.220.0000.00716.83
8.0.210.0050.00316.82
8.0.200.0030.00316.90
8.0.190.0070.00016.74
8.0.180.0000.00716.88
8.0.170.0040.00416.88
8.0.160.0000.00716.84
8.0.150.0030.00716.68
8.0.140.0040.00416.70
8.0.130.0030.00313.25
8.0.120.0000.00916.76
8.0.110.0000.00716.88
8.0.100.0080.00016.94
8.0.90.0000.00716.81
8.0.80.0110.00716.82
8.0.70.0000.00816.68
8.0.60.0040.00416.81
8.0.50.0070.00016.89
8.0.30.0110.00617.03
8.0.20.0100.01117.40
8.0.10.0000.00716.97
8.0.00.0110.00616.82
7.4.330.0020.00215.55
7.4.320.0060.00016.45
7.4.300.0030.00316.41
7.4.290.0070.00016.45
7.4.280.0070.00016.52
7.4.270.0030.00316.36
7.4.260.0000.00716.42
7.4.250.0050.00316.41
7.4.240.0040.00416.37
7.4.230.0070.00016.56
7.4.220.0040.00416.45
7.4.210.0030.01316.52
7.4.200.0000.00716.54
7.4.160.0090.01416.41
7.4.140.0090.01017.86
7.4.130.0120.00916.70
7.4.120.0140.00816.44
7.4.110.0090.01216.36
7.4.100.0110.00616.57
7.4.90.0110.00616.37
7.4.80.0030.01519.39
7.4.70.0080.00816.31
7.4.60.0130.00416.43
7.4.50.0030.01216.25
7.4.40.0140.00716.59
7.4.00.0080.00514.94
7.3.330.0030.00313.12
7.3.320.0000.00613.04
7.3.310.0030.00316.03
7.3.300.0000.00616.26
7.3.290.0000.00716.11
7.3.280.0090.01016.17
7.3.260.0110.00516.26
7.3.240.0100.00816.33
7.3.230.0140.00316.32
7.3.210.0100.00716.55
7.3.200.0090.00616.32
7.3.190.0060.01216.26
7.3.180.0120.00316.45
7.3.170.0060.01016.49
7.3.160.0140.00716.40
7.3.120.0070.00714.75
7.3.110.0080.00414.73
7.3.100.0090.00614.56
7.3.90.0100.00614.73
7.3.80.0090.00915.10
7.3.70.0040.00814.77
7.3.60.0080.00614.85
7.3.50.0070.00414.64
7.3.40.0070.00714.76
7.3.30.0090.00614.74
7.3.20.0030.01316.64
7.3.10.0090.00316.80
7.3.00.0100.00316.51
7.2.330.0150.00916.73
7.2.320.0130.00316.57
7.2.310.0040.01516.36
7.2.300.0080.00816.51
7.2.290.0070.01716.46
7.2.250.0070.01115.24
7.2.240.0070.01315.16
7.2.230.0030.00915.02
7.2.220.0110.00014.94
7.2.210.0060.01214.93
7.2.200.0030.01014.93
7.2.190.0060.00614.98
7.2.180.0090.00614.71
7.2.170.0030.00914.87
7.2.70.0080.01116.86
7.2.60.0060.00817.00
7.2.50.0070.00717.01
7.2.40.0100.00316.98
7.2.30.0060.00616.61
7.2.20.0040.01116.67
7.2.10.0100.00516.93
7.2.00.0120.00616.77
7.1.330.0130.00015.59
7.1.320.0070.00715.85
7.1.310.0040.01015.81
7.1.300.0060.00615.70
7.1.290.0110.00415.92
7.1.280.0060.00915.88
7.1.270.0130.00315.38
7.1.260.0000.01315.78
7.1.200.0000.00615.83
7.1.170.0120.00015.55
7.1.160.0030.00915.68
7.1.150.0090.00315.69
7.1.140.0030.01415.59
7.1.130.0070.01015.61
7.1.120.0060.01115.74
7.1.110.0060.00915.52
7.1.100.0000.01215.44
7.1.90.0110.00315.71
7.1.80.0150.00015.69
7.1.70.0120.00315.64
7.1.60.0310.00733.73
7.1.50.0260.00933.66
7.1.40.0220.00933.58
7.1.30.0220.00933.79
7.1.20.0350.00933.69
7.1.10.0060.01015.75
7.1.00.0070.01015.62

preferences:
56.42 ms | 400 KiB | 5 Q