3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [0 => 'fire', 1 => 'flood']; echo (json_encode($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)
8.3.60.0150.00018.30
8.3.50.0100.00715.99
8.3.40.0030.01018.71
8.3.30.0110.00318.61
8.3.20.0040.00420.22
8.3.10.0080.00023.61
8.3.00.0040.00419.56
8.2.180.0110.00418.09
8.2.170.0110.00322.96
8.2.160.0120.00319.08
8.2.150.0000.00825.66
8.2.140.0000.00824.66
8.2.130.0020.00519.11
8.2.120.0030.00526.35
8.2.110.0090.00022.25
8.2.100.0040.00817.91
8.2.90.0040.00419.26
8.2.80.0000.00818.05
8.2.70.0030.00617.50
8.2.60.0040.00418.05
8.2.50.0090.00318.10
8.2.40.0040.00420.55
8.2.30.0040.00419.34
8.2.20.0040.00417.97
8.2.10.0040.00417.86
8.2.00.0060.00318.04
8.1.280.0100.00625.92
8.1.270.0080.00022.04
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00620.88
8.1.230.0070.00419.06
8.1.220.0050.00317.76
8.1.210.0040.00418.77
8.1.200.0050.00517.36
8.1.190.0000.00817.22
8.1.180.0000.00818.10
8.1.170.0030.00518.65
8.1.160.0040.00418.96
8.1.150.0000.00718.86
8.1.140.0000.00719.53
8.1.130.0070.00018.73
8.1.120.0040.00417.38
8.1.110.0050.00317.32
8.1.100.0040.00417.27
8.1.90.0080.00017.41
8.1.80.0030.00617.34
8.1.70.0050.00217.28
8.1.60.0000.00817.39
8.1.50.0000.00717.47
8.1.40.0080.00317.45
8.1.30.0000.00717.54
8.1.20.0040.00417.61
8.1.10.0040.00417.48
8.1.00.0020.00517.47
8.0.300.0000.00720.07
8.0.290.0050.00316.75
8.0.280.0030.00318.47
8.0.270.0030.00317.23
8.0.260.0000.00616.84
8.0.250.0040.00416.95
8.0.240.0000.00816.87
8.0.230.0050.00216.71
8.0.220.0030.00316.68
8.0.210.0030.00316.84
8.0.200.0040.00416.76
8.0.190.0050.00316.89
8.0.180.0070.00016.88
8.0.170.0000.00916.84
8.0.160.0000.00816.73
8.0.150.0040.00416.72
8.0.140.0050.00316.79
8.0.130.0030.00313.23
8.0.120.0040.00416.74
8.0.110.0030.00316.59
8.0.100.0040.00416.79
8.0.90.0050.00316.79
8.0.80.0100.01016.79
8.0.70.0060.00316.84
8.0.60.0040.00416.64
8.0.50.0050.00216.71
8.0.30.0100.00716.93
8.0.20.0130.00717.40
8.0.10.0040.00416.83
8.0.00.0110.00616.76
7.4.330.0000.00615.55
7.4.320.0000.00616.41
7.4.300.0070.00016.37
7.4.290.0060.00316.41
7.4.280.0040.00416.41
7.4.270.0030.00316.45
7.4.260.0000.00716.39
7.4.250.0000.00716.49
7.4.240.0000.00716.50
7.4.230.0030.00316.42
7.4.220.0170.00016.44
7.4.210.0120.00316.59
7.4.200.0070.00016.61
7.4.160.0060.00916.43
7.4.150.0150.00317.40
7.4.140.0130.00817.86
7.4.130.0180.00616.50
7.4.120.0090.01116.46
7.4.110.0030.01316.49
7.4.100.0090.00916.48
7.4.90.0070.01016.33
7.4.80.0070.01019.39
7.4.70.0030.01316.36
7.4.60.0100.00716.50
7.4.50.0000.01116.23
7.4.40.0160.00016.57
7.4.30.0100.00616.51
7.4.10.0110.01115.10
7.4.00.0030.01314.79
7.3.330.0000.00512.98
7.3.320.0000.00612.96
7.3.310.0070.00016.22
7.3.300.0000.00716.11
7.3.290.0050.00916.15
7.3.280.0100.00616.12
7.3.270.0100.00717.40
7.3.260.0190.00516.24
7.3.250.0080.01216.32
7.3.240.0110.00616.41
7.3.230.0070.01016.44
7.3.210.0130.00316.23
7.3.200.0110.00916.20
7.3.190.0000.02016.51
7.3.180.0100.01016.23
7.3.170.0090.00916.02
7.3.160.0030.02216.19
7.3.130.0000.01614.77
7.3.120.0080.01114.74
7.3.110.0040.01614.64
7.3.100.0060.00614.49
7.3.90.0000.00814.96
7.3.80.0050.00514.41
7.3.70.0040.00714.56
7.3.60.0000.01614.58
7.3.50.0090.00614.48
7.3.40.0000.00814.68
7.3.30.0000.01214.51
7.3.20.0070.00716.48
7.3.10.0040.00816.58
7.3.00.0130.00316.53
7.2.330.0080.00916.36
7.2.320.0070.01416.21
7.2.310.0090.00616.18
7.2.300.0100.00516.52
7.2.290.0120.00616.36
7.2.260.0040.01414.80
7.2.250.0150.00614.88
7.2.240.0070.00714.71
7.2.230.0080.00415.14
7.2.220.0120.00614.71
7.2.210.0060.00615.10
7.2.200.0030.00614.90
7.2.190.0030.00614.73
7.2.180.0060.00314.64
7.2.170.0030.01014.86
7.2.160.0030.00815.00
7.2.150.0060.00616.87
7.2.140.0080.00816.67
7.2.130.0030.01416.96
7.2.120.0000.01816.79
7.2.110.0100.00616.66
7.2.100.0030.01016.91
7.2.90.0070.00716.78
7.2.80.0030.01016.59
7.2.70.0030.01316.66
7.2.60.0060.00916.65
7.2.50.0100.00616.49
7.2.40.0110.00316.86
7.2.30.0040.01116.90
7.2.20.0060.00916.78
7.2.10.0070.01016.49
7.2.00.0140.00817.93
7.1.330.0100.00315.90
7.1.320.0030.01415.74
7.1.310.0030.00915.51
7.1.300.0080.00615.60
7.1.290.0080.00315.64
7.1.280.0070.00715.72
7.1.270.0060.00315.93
7.1.260.0040.00815.47
7.1.250.0030.01015.93
7.1.240.0100.00315.82
7.1.230.0040.01115.67
7.1.220.0060.00915.52
7.1.210.0000.01415.87
7.1.200.0020.00815.69
7.1.190.0090.00915.82
7.1.180.0060.00615.43
7.1.170.0070.01015.80
7.1.160.0000.01015.51
7.1.150.0070.01015.93
7.1.140.0000.01415.74
7.1.130.0070.00715.64
7.1.120.0030.01015.74
7.1.110.0080.00815.55
7.1.100.0060.00516.87
7.1.90.0040.00415.55
7.1.80.0030.01215.54
7.1.70.0080.00716.26
7.1.60.0100.01425.29
7.1.50.0080.01325.25
7.1.40.0120.00924.92
7.1.30.0150.00924.88
7.1.20.0110.01625.08
7.1.10.0070.00616.00
7.1.00.0020.01316.06
7.0.330.0090.00015.54
7.0.320.0120.00315.48
7.0.310.0030.00615.38
7.0.300.0050.00315.46
7.0.290.0050.00315.27
7.0.280.0060.00615.25
7.0.270.0070.00715.32
7.0.260.0000.01315.45
7.0.250.0110.00415.16
7.0.240.0000.00915.47
7.0.230.0060.00615.33
7.0.220.0070.00715.27
7.0.210.0030.01015.32
7.0.200.0100.00616.00
7.0.190.0050.00615.95
7.0.180.0050.01215.95
7.0.170.0080.00915.68
7.0.160.0060.01315.70
7.0.150.0060.00715.79
7.0.140.0010.01215.89
7.0.130.0060.00915.76
7.0.120.0060.01315.98
7.0.110.0070.00815.82
7.0.100.0040.01015.80
7.0.90.0050.01015.74
7.0.80.0050.01215.81
7.0.70.0030.01115.77
7.0.60.0090.00715.73
7.0.50.0060.00815.81
7.0.40.0060.00714.96
7.0.30.0040.01114.97
7.0.20.0100.00314.87
7.0.10.0030.01214.87
7.0.00.0010.01514.85
5.6.400.0030.00714.60
5.6.390.0070.00314.21
5.6.380.0090.00614.34
5.6.370.0000.01114.10
5.6.360.0120.00314.29
5.6.350.0070.01014.04
5.6.340.0080.00814.30
5.6.330.0040.00814.50
5.6.320.0070.00714.39
5.6.310.0040.01114.68
5.6.300.0100.00314.29
5.6.290.0140.00014.64
5.6.280.0070.01114.59
5.6.270.0060.00614.17
5.6.260.0060.00613.97
5.6.250.0100.00713.97
5.6.240.0030.01214.36
5.6.230.0060.00614.28
5.6.220.0060.00514.18
5.6.210.0040.00714.18
5.6.200.0030.01214.43
5.6.190.0080.00414.38
5.6.180.0060.01014.21
5.6.170.0060.00614.45
5.6.160.0030.01014.59
5.6.150.0000.01414.05
5.6.140.0070.00714.02
5.6.130.0040.00814.34
5.6.120.0000.01414.48
5.6.110.0000.01314.10
5.6.100.0060.00813.99
5.6.90.0000.00814.18
5.6.80.0030.00714.39
5.6.70.0100.00313.93
5.6.60.0000.01014.04
5.6.50.0030.01213.85
5.6.40.0080.00414.04
5.6.30.0030.00613.97
5.6.20.0000.01214.25
5.6.10.0000.00914.39
5.6.00.0130.00014.38

preferences:
48.18 ms | 400 KiB | 5 Q