3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr1 = ["a","b","c"]; var_dump(json_encode($arr1)); $arr2 = [1=>"A", 4=>"b", 10=>"c"]; var_dump(json_encode($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)
8.3.70.0140.00418.19
8.3.60.0180.00318.14
8.3.50.0150.00317.86
8.3.40.0140.00318.54
8.3.30.0110.00418.72
8.3.20.0000.00724.18
8.3.10.0040.00424.66
8.3.00.0070.00026.16
8.2.180.0100.00325.92
8.2.170.0000.01618.71
8.2.160.0110.00422.96
8.2.150.0060.00325.66
8.2.140.0080.00024.66
8.2.130.0050.00226.16
8.2.120.0000.00826.16
8.2.110.0040.00422.04
8.2.100.0060.00619.51
8.2.90.0090.00017.38
8.2.80.0000.00818.64
8.2.70.0060.00317.38
8.2.60.0090.00017.93
8.2.50.0000.00818.05
8.2.40.0000.00818.16
8.2.30.0040.00418.06
8.2.20.0000.00718.02
8.2.10.0040.00419.06
8.2.00.0080.00019.28
8.1.280.0140.00325.92
8.1.270.0070.00023.99
8.1.260.0060.00326.35
8.1.250.0050.00228.09
8.1.240.0060.00320.65
8.1.230.0070.00417.89
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0000.00817.35
8.1.190.0050.00317.23
8.1.180.0050.00318.10
8.1.170.0000.00718.52
8.1.160.0000.00918.99
8.1.150.0040.00418.86
8.1.140.0060.00318.69
8.1.130.0000.00719.99
8.1.120.0050.00217.44
8.1.110.0040.00417.39
8.1.100.0030.00517.38
8.1.90.0000.00717.40
8.1.80.0070.00317.29
8.1.70.0070.00317.28
8.1.60.0040.00417.48
8.1.50.0040.00417.43
8.1.40.0000.00817.35
8.1.30.0040.00417.54
8.1.20.0030.00517.49
8.1.10.0000.00817.33
8.1.00.0040.00417.39
8.0.300.0080.00018.77
8.0.290.0000.00916.63
8.0.280.0000.00818.57
8.0.270.0070.00017.88
8.0.260.0040.00418.56
8.0.250.0000.00716.80
8.0.240.0040.00416.77
8.0.230.0030.00316.84
8.0.220.0080.00016.81
8.0.210.0070.00016.78
8.0.200.0000.00616.77
8.0.190.0000.00716.77
8.0.180.0070.00016.86
8.0.170.0000.00816.76
8.0.160.0000.00916.71
8.0.150.0050.00216.81
8.0.140.0040.00416.68
8.0.130.0060.00013.29
8.0.120.0040.00416.78
8.0.110.0030.00616.72
8.0.100.0050.00316.80
8.0.90.0000.00816.62
8.0.80.0090.00816.76
8.0.70.0000.00716.82
8.0.60.0060.00316.81
8.0.50.0070.00016.88
8.0.30.0270.00816.76
8.0.20.0310.00816.83
8.0.10.0320.01216.82
8.0.00.0160.01216.88
7.4.330.0040.00015.55
7.4.320.0060.00016.43
7.4.300.0000.00816.43
7.4.290.0000.00716.37
7.4.280.0080.00016.57
7.4.270.0040.00416.55
7.4.260.0030.00313.20
7.4.250.0020.00516.32
7.4.240.0000.00716.56
7.4.230.0060.00316.33
7.4.220.0030.00316.45
7.4.210.0100.00316.53
7.4.200.0070.00016.60
7.4.160.0280.00616.30
7.4.150.0260.00516.43
7.4.140.0170.00916.33
7.4.130.0170.00916.19
7.4.120.0290.00016.13
7.4.110.0130.01116.35
7.4.100.0170.00716.31
7.4.90.0180.00716.48
7.4.80.0200.00716.25
7.4.70.0250.00316.38
7.4.60.0180.01016.18
7.4.50.0230.00716.23
7.4.40.0190.00716.23
7.4.30.0150.01216.31
7.4.20.0250.00416.29
7.4.10.0190.00716.46
7.4.00.0210.00816.38
7.3.330.0000.00816.00
7.3.320.0050.00012.95
7.3.310.0000.00716.09
7.3.300.0030.00316.04
7.3.290.0120.00316.10
7.3.280.0160.01016.12
7.3.270.0160.01316.08
7.3.260.0170.00816.03
7.3.250.0210.00516.07
7.3.240.0080.01716.10
7.3.230.0130.01316.13
7.3.220.0140.01116.03
7.3.210.0160.00916.02
7.3.200.0250.00316.01
7.3.190.0250.00516.12
7.3.180.0190.00516.03
7.3.170.0180.00716.04
7.3.160.0110.01516.06
7.3.150.0210.00516.03
7.3.140.0260.00016.12
7.3.130.0200.00716.03
7.3.120.0150.01016.06
7.3.110.0200.00615.96
7.3.100.0200.00715.91
7.3.90.0190.00816.24
7.3.80.0190.00716.05
7.3.70.0140.01116.19
7.3.60.0120.01216.18
7.3.50.0240.00316.26
7.3.40.0180.01316.23
7.3.30.0260.00016.11
7.3.20.0140.01116.29
7.3.10.0220.00516.20
7.3.00.0140.01416.16

preferences:
70.02 ms | 400 KiB | 5 Q