3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array =[]; print_r(json_encode($array));

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)
8.3.60.0090.00616.63
8.3.50.0030.01416.50
8.3.40.0120.00318.77
8.3.30.0000.01418.48
8.3.20.0000.00720.07
8.3.10.0040.00423.66
8.3.00.0040.00419.39
8.2.180.0070.01116.75
8.2.170.0120.00322.96
8.2.160.0070.00718.94
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00019.27
8.2.120.0000.00726.35
8.2.110.0030.00620.25
8.2.100.0110.00417.91
8.2.90.0040.00420.45
8.2.80.0090.00017.97
8.2.70.0000.00817.93
8.2.60.0000.00817.97
8.2.50.0030.00619.36
8.2.40.0050.00321.07
8.2.30.0040.00419.05
8.2.20.0000.00717.92
8.2.10.0040.00417.89
8.2.00.0000.00718.02
8.1.280.0040.01125.92
8.1.270.0000.00722.24
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.64
8.1.230.0110.00020.97
8.1.220.0080.00017.74
8.1.210.0100.00019.07
8.1.200.0060.00317.23
8.1.190.0040.00417.23
8.1.180.0000.00818.10
8.1.170.0000.00820.36
8.1.160.0040.00418.91
8.1.150.0040.00420.59
8.1.140.0030.00619.56
8.1.130.0000.00718.87
8.1.120.0000.00717.30
8.1.110.0000.00717.39
8.1.100.0040.00417.26
8.1.90.0030.00617.34
8.1.80.0020.00517.41
8.1.70.0030.00317.29
8.1.60.0080.00017.41
8.1.50.0030.00517.32
8.1.40.0080.00317.43
8.1.30.0040.00417.55
8.1.20.0060.00317.48
8.1.10.0040.00417.50
8.1.00.0040.00417.39
8.0.300.0070.00019.98
8.0.290.0030.00616.75
8.0.280.0030.00318.28
8.0.270.0070.00017.22
8.0.260.0030.00616.70
8.0.250.0000.00616.79
8.0.240.0080.00016.73
8.0.230.0000.00616.94
8.0.220.0000.00816.79
8.0.210.0030.00316.72
8.0.200.0000.00716.88
8.0.190.0000.00816.79
8.0.180.0050.00316.88
8.0.170.0080.00016.86
8.0.160.0000.00716.79
8.0.150.0040.00416.74
8.0.140.0000.00716.78
8.0.130.0000.00613.23
8.0.120.0030.00316.77
8.0.110.0000.00816.70
8.0.100.0040.00416.84
8.0.90.0000.00716.80
8.0.80.0110.01116.79
8.0.70.0030.00516.83
8.0.60.0070.00016.86
8.0.50.0040.00416.70
8.0.30.0120.01316.99
8.0.20.0120.00817.40
8.0.10.0000.00716.98
8.0.00.0100.00716.57
7.4.330.0000.00515.55
7.4.320.0030.00316.32
7.4.300.0040.00416.53
7.4.290.0000.00816.41
7.4.280.0040.00316.57
7.4.270.0030.00316.45
7.4.260.0060.00316.50
7.4.250.0000.00716.48
7.4.240.0020.00516.43
7.4.230.0070.00016.60
7.4.220.0100.00816.46
7.4.210.0100.01016.54
7.4.200.0000.00716.27
7.4.160.0090.00616.29
7.4.150.0100.01017.40
7.4.140.0110.00617.86
7.4.130.0100.01016.44
7.4.120.0090.01116.40
7.4.110.0100.00716.35
7.4.100.0090.00916.34
7.4.90.0150.00416.45
7.4.80.0120.00619.39
7.4.70.0120.00416.39
7.4.60.0070.01016.37
7.4.50.0070.01116.43
7.4.40.0060.01016.53
7.4.30.0120.00816.57
7.4.00.0030.01314.83
7.3.330.0030.00312.96
7.3.320.0030.00213.00
7.3.310.0030.00616.08
7.3.300.0030.00315.98
7.3.290.0080.00916.10
7.3.280.0090.00616.11
7.3.270.0070.01017.40
7.3.260.0070.01116.19
7.3.250.0110.00716.24
7.3.240.0110.01016.13
7.3.230.0110.00716.48
7.3.210.0130.00616.50
7.3.200.0110.01116.20
7.3.190.0120.00416.18
7.3.180.0070.01016.18
7.3.170.0130.00616.10
7.3.160.0060.01516.23
7.3.120.0060.01014.62
7.3.110.0050.01214.77
7.3.100.0060.00514.59
7.3.90.0060.01014.80
7.3.80.0080.00614.62
7.3.70.0060.00414.63
7.3.60.0090.00514.60
7.3.50.0050.00814.46
7.3.40.0050.00714.73
7.3.30.0080.00914.48
7.3.20.0070.00216.53
7.3.10.0110.00216.48
7.3.00.0060.00416.53
7.2.330.0060.01216.45
7.2.320.0080.00816.53
7.2.310.0040.01216.53
7.2.300.0140.00716.41
7.2.290.0070.01116.52
7.2.250.0090.01214.68
7.2.240.0100.00814.80
7.2.230.0050.01314.69
7.2.220.0050.00714.73
7.2.210.0060.00714.66
7.2.200.0080.00614.81
7.2.190.0090.00514.87
7.2.180.0050.01014.70
7.2.170.0080.00614.76
7.2.160.0030.01314.68
7.2.150.0120.00016.79
7.2.140.0030.01316.70
7.2.130.0000.01416.82
7.2.120.0000.01416.51
7.2.110.0000.01216.65
7.2.100.0060.00916.79
7.2.90.0090.00616.55
7.2.80.0050.00516.86
7.2.70.0070.00716.45
7.2.60.0090.00616.81
7.2.50.0000.01516.40
7.2.40.0070.00716.73
7.2.30.0030.01016.69
7.2.20.0070.00716.82
7.2.10.0060.00916.66
7.2.00.0040.00917.99
7.1.330.0060.00815.62
7.1.320.0050.00915.71
7.1.310.0040.00915.57
7.1.300.0060.00515.75
7.1.290.0080.00515.62
7.1.280.0050.00915.64
7.1.270.0070.00515.65
7.1.260.0080.00415.74
7.1.250.0100.00315.77
7.1.200.0030.00715.59
7.1.100.0060.00618.13
7.1.70.0060.00916.75
7.1.60.0120.01234.89
7.1.50.0220.00334.84
7.1.40.0180.01134.37
7.1.30.0130.01334.54
7.1.20.0130.01634.66
7.1.10.0000.01416.64
7.1.00.0060.00616.50
7.0.200.0090.00316.63
7.0.190.0060.00616.55
7.0.180.0000.01516.07
7.0.170.0030.01016.22
7.0.160.0060.00916.07
7.0.150.0060.00916.06
7.0.140.0030.00916.13
7.0.130.0000.01316.29
7.0.120.0030.00916.54
7.0.110.0000.01316.29
7.0.100.0070.00716.15
7.0.90.0060.00816.16
7.0.80.0060.01116.48
7.0.70.0050.01016.32
7.0.60.0030.01015.79
7.0.50.0090.00416.21
7.0.40.0030.01316.46
7.0.30.0070.01016.42
7.0.20.0070.00716.52
7.0.10.0000.01316.27
7.0.00.0000.01216.20

preferences:
61.92 ms | 400 KiB | 5 Q