3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr1 = ["a","b","c"]; var_dump(json_encode($arr1)); $arr2 = [1=>"A", 3=>"b", 4=>"c"]; var_dump(json_encode($arr2)); $arr3 = [1=>"A", 14=>"b", 10=>"c"]; var_dump(json_encode($arr2));

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)
8.3.60.0100.01316.38
8.3.50.0110.00417.99
8.3.40.0070.01018.67
8.3.30.0080.00618.60
8.3.20.0000.00724.18
8.3.10.0040.00424.66
8.3.00.0080.00026.16
8.2.180.0170.00325.92
8.2.170.0140.00718.64
8.2.160.0070.00722.96
8.2.150.0070.00025.66
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0080.00026.16
8.2.110.0180.00320.56
8.2.100.0040.00818.16
8.2.90.0040.00419.09
8.2.80.0000.00817.97
8.2.70.0000.00817.50
8.2.60.0040.00417.93
8.2.50.0030.00618.07
8.2.40.0000.00818.11
8.2.30.0040.00417.90
8.2.20.0040.00417.89
8.2.10.0040.00419.24
8.2.00.0080.00019.23
8.1.280.0120.00625.92
8.1.270.0040.00423.99
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0100.00022.24
8.1.230.0000.01117.82
8.1.220.0080.00317.74
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0040.00417.23
8.1.180.0080.00018.10
8.1.170.0040.00418.38
8.1.160.0030.00318.74
8.1.150.0040.00418.70
8.1.140.0000.00820.61
8.1.130.0050.00220.11
8.1.120.0040.00417.39
8.1.110.0040.00417.31
8.1.100.0030.00517.25
8.1.90.0030.00317.37
8.1.80.0000.00717.37
8.1.70.0060.00317.35
8.1.60.0000.00817.39
8.1.50.0040.00417.43
8.1.40.0070.00017.49
8.1.30.0030.00617.58
8.1.20.0080.00017.62
8.1.10.0000.00717.44
8.1.00.0040.00417.27
8.0.300.0070.00018.77
8.0.290.0070.00316.75
8.0.280.0040.00418.37
8.0.270.0030.00317.91
8.0.260.0000.00618.57
8.0.250.0030.00316.90
8.0.240.0000.00716.95
8.0.230.0000.00616.89
8.0.220.0030.00316.83
8.0.210.0000.00816.82
8.0.200.0000.00716.88
8.0.190.0040.00416.85
8.0.180.0000.00716.72
8.0.170.0000.00916.71
8.0.160.0030.00616.79
8.0.150.0030.00416.82
8.0.140.0000.00716.76
8.0.130.0070.00013.19
8.0.120.0030.00616.68
8.0.110.0050.00216.86
8.0.100.0050.00316.69
8.0.90.0040.00416.77
8.0.80.0080.01016.77
8.0.70.0040.00416.78
8.0.60.0080.00016.78
8.0.50.0000.00716.72
8.0.30.0270.00816.70
8.0.20.0230.00816.75
8.0.10.0200.01016.91
8.0.00.0160.01216.79
7.4.330.0040.00015.55
7.4.320.0050.00216.44
7.4.300.0060.00016.44
7.4.290.0030.00616.50
7.4.280.0050.00316.42
7.4.270.0050.00516.38
7.4.260.0000.00513.19
7.4.250.0070.00016.32
7.4.240.0040.00316.46
7.4.230.0030.00616.31
7.4.220.0070.00016.53
7.4.210.0050.00816.45
7.4.200.0040.00416.63
7.4.160.0260.00016.50
7.4.150.0260.00616.25
7.4.140.0310.00216.23
7.4.130.0160.01116.38
7.4.120.0120.02416.19
7.4.110.0220.00616.34
7.4.100.0230.00916.41
7.4.90.0160.01316.14
7.4.80.0230.00316.28
7.4.70.0210.00616.38
7.4.60.0220.00616.21
7.4.50.0160.01616.31
7.4.40.0240.01016.20
7.4.30.0310.01216.33
7.4.20.0180.01516.28
7.4.10.0170.01316.29
7.4.00.0200.01016.30
7.3.330.0030.00616.25
7.3.320.0030.00313.07
7.3.310.0030.00316.09
7.3.300.0070.00016.18
7.3.290.0080.00816.13
7.3.280.0270.00516.11
7.3.270.0200.00716.00
7.3.260.0180.00916.00
7.3.250.0150.01016.07
7.3.240.0250.00316.07
7.3.230.0190.00816.12
7.3.220.0210.01016.10
7.3.210.0240.00516.07
7.3.200.0200.00716.08
7.3.190.0310.00416.03
7.3.180.0250.00416.05
7.3.170.0190.01116.02
7.3.160.0210.01116.03
7.3.150.0160.01015.98
7.3.140.0270.00916.03
7.3.130.0220.00916.01
7.3.120.0200.00516.09
7.3.110.0230.00315.99
7.3.100.0160.01015.90
7.3.90.0200.01216.24
7.3.80.0220.00616.10
7.3.70.0210.00716.18
7.3.60.0210.01216.13
7.3.50.0130.01616.27
7.3.40.0170.01316.09
7.3.30.0280.00816.15
7.3.20.0270.01016.21
7.3.10.0230.01416.11
7.3.00.0280.00616.15

preferences:
36.25 ms | 401 KiB | 5 Q