3v4l.org

run code in 300+ PHP versions simultaneously
<?php $jpr = json_encode('[{"character"=> "Cyclops", "realName"=> "Scott Summers"},{"character"=> "Professor X", "realName"=> "Charles Francis Xavier"}]'); echo $jpr;

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)
8.3.70.0040.01116.50
8.3.60.0030.01218.43
8.3.50.0120.00722.05
8.3.40.0110.00418.57
8.3.30.0090.00618.52
8.3.20.0030.00519.16
8.3.10.0070.00021.79
8.3.00.0050.00319.66
8.2.190.0070.01116.58
8.2.180.0070.01116.75
8.2.170.0110.01122.96
8.2.160.0090.00618.90
8.2.150.0050.00224.18
8.2.140.0070.00024.66
8.2.130.0080.00020.57
8.2.120.0040.00426.35
8.2.110.0090.00019.41
8.2.100.0090.00317.77
8.2.90.0040.00419.17
8.2.80.0000.00817.97
8.2.70.0040.00417.50
8.2.60.0000.00717.93
8.2.50.0000.00718.10
8.2.40.0000.00820.61
8.2.30.0000.00819.18
8.2.20.0050.00318.10
8.2.10.0040.00418.07
8.2.00.0080.00018.32
8.1.280.0130.00925.92
8.1.270.0040.00422.19
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0070.00421.12
8.1.230.0120.00019.07
8.1.220.0080.00017.74
8.1.210.0050.00318.77
8.1.200.0110.00017.35
8.1.190.0000.00817.22
8.1.180.0050.00318.10
8.1.170.0060.00318.46
8.1.160.0040.00418.77
8.1.150.0040.00420.12
8.1.140.0060.00319.41
8.1.130.0070.00018.77
8.1.120.0030.00517.35
8.1.110.0000.00717.24
8.1.100.0070.00017.42
8.1.90.0000.00717.39
8.1.80.0000.00817.27
8.1.70.0040.00417.41
8.1.60.0000.00717.39
8.1.50.0080.00017.46
8.1.40.0080.00017.31
8.1.30.0040.00417.41
8.1.20.0050.00317.59
8.1.10.0000.00717.48
8.1.00.0070.00017.43
8.0.300.0070.00019.93
8.0.290.0040.00416.63
8.0.280.0030.00318.35
8.0.270.0000.00917.25
8.0.260.0040.00418.92
8.0.250.0040.00416.99
8.0.240.0000.00816.84
8.0.230.0050.00216.85
8.0.220.0030.00316.79
8.0.210.0000.00716.81
8.0.200.0080.00016.74
8.0.190.0000.00816.76
8.0.180.0000.00816.72
8.0.170.0000.00716.83
8.0.160.0000.00816.65
8.0.150.0000.00716.71
8.0.140.0030.00316.66
8.0.130.0050.00013.30
8.0.120.0030.00516.79
8.0.110.0040.00416.70
8.0.100.0040.00416.82
8.0.90.0050.00216.70
8.0.80.0070.01116.77
8.0.70.0050.00316.80
8.0.60.0040.00416.88
8.0.50.0040.00416.73
8.0.30.0090.00916.92
8.0.20.0100.01517.40
8.0.10.0070.00016.85
8.0.00.0080.01216.72
7.4.330.0030.00315.55
7.4.320.0070.00016.41
7.4.300.0030.00316.56
7.4.290.0030.00316.43
7.4.280.0000.00816.51
7.4.270.0050.00316.46
7.4.260.0030.00316.52
7.4.250.0040.00416.40
7.4.240.0000.00716.46
7.4.230.0070.00016.58
7.4.220.0070.01116.48
7.4.210.0070.00716.58
7.4.200.0040.00316.59
7.4.160.0090.00716.40
7.4.150.0120.01217.40
7.4.140.0070.01217.86
7.4.130.0190.00716.42
7.4.120.0120.00816.42
7.4.110.0100.01216.49
7.4.100.0110.01116.44
7.4.90.0060.00916.30
7.4.80.0060.00919.39
7.4.70.0090.00916.44
7.4.60.0070.01016.49
7.4.50.0030.01016.29
7.4.40.0100.00716.22
7.4.30.0080.01116.42
7.4.00.0070.01114.72
7.3.330.0050.00013.10
7.3.320.0020.00313.17
7.3.310.0050.00216.21
7.3.300.0000.00716.19
7.3.290.0090.00916.21
7.3.280.0080.01016.19
7.3.270.0050.01117.40
7.3.260.0090.01116.19
7.3.240.0050.01216.36
7.3.230.0090.01216.18
7.3.210.0150.00916.64
7.3.200.0100.01316.43
7.3.190.0090.00816.41
7.3.180.0080.00816.15
7.3.170.0130.00316.23
7.3.160.0060.00916.16
7.2.330.0130.00416.65
7.2.320.0110.00516.63
7.2.310.0110.00716.36
7.2.300.0140.00716.27
7.2.290.0090.00716.29
7.1.70.0000.00817.02
7.1.60.0090.00617.17
7.1.50.1730.01732.68
7.1.40.1070.01032.36
7.1.30.1730.02332.35
7.1.20.1300.01332.64
7.1.10.0900.01314.38
7.1.00.1000.00714.66
7.0.200.0000.01616.82
7.0.190.2730.00314.45
7.0.180.0930.01014.14
7.0.170.1430.00714.24
7.0.160.1200.00314.17
7.0.150.1630.01014.39
7.0.140.0970.00714.33
7.0.130.1030.00714.68
7.0.120.0870.01314.48
7.0.110.1030.00714.35
7.0.100.0800.01314.26
7.0.90.0900.00314.27
7.0.80.0130.01314.43
7.0.70.1730.00314.37
7.0.60.1130.01014.23
7.0.50.1700.01014.43
7.0.40.0870.00314.48
7.0.30.0830.01014.48
7.0.20.0970.01014.38
7.0.10.0770.01014.48
7.0.00.1030.00314.38

preferences:
19.75 ms | 401 KiB | 5 Q