3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach (["", null, [], "\0"] as $var) echo var_export($var) ." = ". json_encode($var)."\n";

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)
8.3.70.0210.00016.58
8.3.60.0090.00918.30
8.3.50.0040.01116.17
8.3.40.0040.01118.59
8.3.30.0100.00719.09
8.3.20.0080.00024.18
8.3.10.0080.00024.66
8.3.00.0090.00026.16
8.2.190.0110.00418.18
8.2.180.0100.01025.92
8.2.170.0180.00322.96
8.2.160.0040.00922.96
8.2.150.0090.00025.66
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00026.35
8.2.110.0070.00319.26
8.2.100.0070.00417.78
8.2.90.0030.00717.63
8.2.80.0000.00918.78
8.2.70.0040.00417.80
8.2.60.0120.00317.68
8.2.50.0040.00419.40
8.2.40.0060.00321.09
8.2.30.0040.00419.04
8.2.20.0000.00717.98
8.2.10.0040.00419.17
8.2.00.0040.00418.98
8.1.280.0170.00325.92
8.1.270.0080.00023.99
8.1.260.0000.00728.09
8.1.250.0000.00828.09
8.1.240.0070.00319.17
8.1.230.0040.00824.03
8.1.220.0030.00517.74
8.1.210.0030.00618.77
8.1.200.0100.00017.00
8.1.190.0060.00317.23
8.1.180.0000.00719.03
8.1.170.0000.00818.46
8.1.160.0000.00818.95
8.1.150.0050.00218.86
8.1.140.0070.00018.81
8.1.130.0030.00320.17
8.1.120.0050.00217.34
8.1.110.0000.00717.28
8.1.100.0070.00017.43
8.1.90.0080.00017.27
8.1.80.0080.00017.32
8.1.70.0040.00417.30
8.1.60.0000.00817.40
8.1.50.0050.00317.51
8.1.40.0000.00717.46
8.1.30.0090.00017.52
8.1.20.0080.00017.50
8.1.10.0030.00517.39
8.1.00.0030.00517.27
8.0.300.0040.00418.81
8.0.290.0030.00616.63
8.0.280.0000.00718.42
8.0.270.0030.00316.74
8.0.260.0000.00618.35
8.0.250.0070.00017.00
8.0.240.0070.00016.83
8.0.230.0000.00716.90
8.0.220.0040.00716.86
8.0.210.0040.00416.75
8.0.200.0000.00716.89
8.0.190.0000.00816.95
8.0.180.0050.00216.95
8.0.170.0030.00616.82
8.0.160.0070.00016.90
8.0.150.0000.00816.70
8.0.140.0000.00716.89
8.0.130.0030.00313.27
8.0.120.0040.00416.79
8.0.110.0030.00516.82
8.0.100.0000.00816.92
8.0.90.0060.00316.88
8.0.80.0050.01016.75
8.0.70.0040.00416.89
8.0.60.0000.00816.76
8.0.50.0040.00416.87
8.0.30.0060.01317.19
8.0.20.0100.01416.96
8.0.10.0050.00316.78
8.0.00.0190.00616.73
7.4.330.0040.00015.55
7.4.320.0050.00216.34
7.4.300.0070.00016.43
7.4.290.0000.00816.42
7.4.280.0040.00416.47
7.4.270.0030.00316.48
7.4.260.0030.00313.20
7.4.250.0030.00516.37
7.4.240.0040.00416.37
7.4.230.0030.00316.30
7.4.220.0000.00716.34
7.4.210.0060.01016.40
7.4.200.0040.00416.52
7.4.130.0130.00916.56
7.4.120.0150.00316.34
7.4.110.0150.00316.32
7.4.100.0100.01016.50
7.4.90.0040.01516.33
7.4.80.0120.00919.39
7.4.70.0060.01316.41
7.4.60.0030.01316.52
7.4.50.0150.01216.14
7.4.40.0140.00915.65
7.4.30.0090.00915.70
7.4.20.0070.01115.98
7.4.10.0170.00215.76
7.4.00.0130.00616.24
7.3.330.0030.00316.22
7.3.320.0060.00013.18
7.3.310.0000.00716.11
7.3.300.0050.00216.29
7.3.290.0100.00516.21
7.3.280.0060.01016.23
7.3.260.0040.01216.26
7.3.240.0090.00816.35
7.3.230.0110.00616.51
7.3.210.0060.01016.40
7.3.200.0080.00816.61
7.3.190.0080.00816.28
7.3.180.0030.01316.51
7.3.170.0170.00716.14
7.3.160.0240.00716.09
7.3.150.0130.00716.05
7.3.140.0180.00915.96
7.3.130.0030.01815.88
7.3.120.0220.00016.07
7.3.110.0120.00615.89
7.3.100.0180.00315.86
7.3.90.0040.01716.12
7.3.80.0080.01915.91
7.3.70.0110.00815.73
7.3.60.0180.00415.73
7.3.50.0060.01516.01
7.3.40.0190.00316.02
7.3.30.0160.00616.11
7.3.20.0090.01616.09
7.3.10.0150.00915.74
7.3.00.0210.01016.02
7.2.330.0060.01216.57
7.2.320.0120.00916.25
7.2.310.0100.00616.59
7.2.300.0040.01116.78
7.2.290.0170.00416.31
7.2.280.0130.00815.89
7.2.270.0100.01016.06
7.2.260.0140.00716.19
7.2.250.0100.01016.14
7.2.240.0110.01116.21
7.2.230.0090.01416.34
7.2.220.0110.01516.00
7.2.210.0110.01116.59
7.2.200.0090.01516.23
7.2.190.0100.01316.25
7.2.180.0120.00916.28
7.2.170.0100.01316.25
7.2.160.0170.01115.98
7.2.150.0210.00916.41
7.2.140.0200.00816.13
7.2.130.0140.01716.28
7.2.120.0240.00516.16
7.2.110.0190.01616.11
7.2.100.0190.00616.24
7.2.90.0140.01416.03
7.2.80.0140.00916.27
7.2.70.0190.01016.09
7.2.60.0190.00716.15
7.2.50.0150.00916.54
7.2.40.0160.01016.34
7.2.30.0330.00616.23
7.2.20.0160.01516.20
7.2.10.0240.01216.29
7.2.00.0080.01116.43

preferences:
30.56 ms | 401 KiB | 5 Q