3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array['hello'] = [['id' => 123],['anotherID' => 456]]; var_dump(json_encode($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)
8.3.70.0040.01216.58
8.3.60.0070.01016.50
8.3.50.0090.00518.24
8.3.40.0000.01518.68
8.3.30.0110.00418.67
8.3.20.0050.00221.77
8.3.10.0040.00423.61
8.3.00.0040.00421.94
8.2.190.0160.00616.58
8.2.180.0110.01525.92
8.2.170.0040.01118.77
8.2.160.0160.00322.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0040.00419.64
8.2.120.0000.00726.35
8.2.110.0140.00722.02
8.2.100.0080.00417.70
8.2.90.0040.00418.03
8.2.80.0040.00417.97
8.2.70.0060.00317.93
8.2.60.0000.00817.90
8.2.50.0060.00318.10
8.2.40.0050.00219.34
8.2.30.0040.00419.12
8.2.20.0020.00518.06
8.2.10.0000.00720.61
8.2.00.0050.00319.31
8.1.280.0090.00925.92
8.1.270.0070.00324.66
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0060.00617.23
8.1.230.0040.00820.96
8.1.220.0060.00317.79
8.1.210.0080.00018.89
8.1.200.0060.00317.23
8.1.190.0040.00417.22
8.1.180.0000.00818.10
8.1.170.0030.00618.62
8.1.160.0040.00418.76
8.1.150.0000.00718.73
8.1.140.0000.00722.14
8.1.130.0030.00320.04
8.1.120.0040.00417.36
8.1.110.0040.00417.33
8.1.100.0060.00317.34
8.1.90.0000.00717.33
8.1.80.0030.00517.25
8.1.70.0000.00717.34
8.1.60.0000.00917.38
8.1.50.0000.00817.38
8.1.40.0020.00517.35
8.1.30.0040.00417.49
8.1.20.0050.00317.55
8.1.10.0090.00017.30
8.1.00.0070.00017.39
8.0.300.0040.00419.79
8.0.290.0080.00016.58
8.0.280.0030.00318.33
8.0.270.0000.00717.05
8.0.260.0040.00418.34
8.0.250.0040.00416.82
8.0.240.0080.00016.83
8.0.230.0070.00016.70
8.0.220.0040.00416.78
8.0.210.0000.00816.79
8.0.200.0000.00616.83
8.0.190.0080.00016.86
8.0.180.0040.00416.76
8.0.170.0080.00016.80
8.0.160.0070.00016.76
8.0.150.0030.00716.68
8.0.140.0050.00316.73
8.0.130.0050.00013.19
8.0.120.0060.00316.68
8.0.110.0040.00416.68
8.0.100.0040.00416.82
8.0.90.0050.00216.61
8.0.80.0050.01316.71
8.0.70.0040.00416.54
8.0.60.0050.00316.66
8.0.50.0000.00716.75
8.0.30.0100.00717.20
8.0.20.0100.01017.40
8.0.10.0030.00616.76
8.0.00.0130.00916.83
7.4.330.0000.00515.55
7.4.320.0030.00316.43
7.4.300.0040.00416.45
7.4.290.0070.00016.45
7.4.280.0040.00416.44
7.4.270.0000.00816.53
7.4.260.0030.00316.33
7.4.250.0000.00716.41
7.4.240.0040.00416.45
7.4.230.0030.00316.56
7.4.220.0040.00416.56
7.4.210.0120.00516.51
7.4.200.0070.00016.35
7.4.160.0100.00816.39
7.4.140.0120.00817.86
7.4.130.0030.01716.40
7.4.120.0110.00916.36
7.4.110.0140.00316.43
7.4.100.0090.01016.46
7.4.90.0130.00616.52
7.4.80.0090.00919.39
7.4.70.0070.01316.48
7.4.60.0040.01516.46
7.4.50.0060.00616.36
7.4.40.0170.00016.35
7.4.10.0040.01515.00
7.4.00.0050.01114.79
7.3.330.0000.00613.04
7.3.320.0000.00512.94
7.3.310.0040.00416.10
7.3.300.0000.00716.11
7.3.290.0030.00316.20
7.3.280.0070.01016.23
7.3.260.0090.00716.25
7.3.240.0090.00916.41
7.3.230.0060.01016.43
7.3.210.0120.00616.41
7.3.200.0100.00716.16
7.3.190.0150.00616.26
7.3.180.0060.01316.46
7.3.170.0000.01916.54
7.3.160.0030.01216.40
7.3.130.0030.01314.59
7.3.120.0070.00914.65
7.3.110.0070.01014.67
7.3.100.0030.00914.69
7.3.90.0050.00714.83
7.3.80.0050.00614.90
7.3.70.0060.00614.53
7.3.60.0030.01014.45
7.3.50.0050.01014.75
7.3.40.0020.01214.59
7.3.30.0050.00814.60
7.3.20.0040.00816.52
7.3.10.0080.00616.52
7.3.00.0180.00416.01
7.2.330.0130.00416.57
7.2.320.0070.01516.38
7.2.310.0080.00916.52
7.2.300.0160.00816.48
7.2.290.0000.01716.18
7.2.260.0000.01814.70
7.2.250.0040.01114.73
7.2.240.0050.00914.90
7.2.230.0060.01114.85
7.2.220.0020.01114.79
7.2.210.0020.01214.72
7.2.200.0030.00814.92
7.2.190.0060.00515.00
7.2.180.0090.00714.76
7.2.170.0070.00414.79
7.2.160.0040.01014.78
7.2.150.0060.00816.68
7.2.140.0050.00616.86
7.2.130.0060.00715.97
7.2.120.0160.00616.17
7.2.110.0180.00616.23
7.2.100.0150.00816.22
7.2.90.0150.00616.17
7.2.80.0150.00716.32
7.2.70.0190.00716.22
7.2.60.0130.01216.28
7.2.50.0170.00816.10
7.2.40.0130.01216.16
7.2.30.0170.00916.35
7.2.20.0170.00716.25
7.2.10.0110.00916.28
7.2.00.0180.00416.33
7.1.330.0080.00715.60
7.1.320.0050.00615.63
7.1.310.0060.00615.76
7.1.300.0040.01015.79
7.1.290.0090.00715.65
7.1.280.0030.01015.77
7.1.270.0090.00415.73
7.1.260.0080.00315.88
7.1.250.0160.00715.28
7.1.240.0040.01115.75
7.1.230.0090.00615.86
7.1.220.0040.00715.57
7.1.210.0000.01215.75
7.1.200.0030.00915.64
7.1.190.0030.00715.73
7.1.180.0040.00815.56
7.1.170.0060.00615.49
7.1.160.0040.01215.70
7.1.150.0070.00715.72
7.1.140.0030.00715.61
7.1.130.0090.00415.57
7.1.120.0110.00315.69
7.1.110.0050.00815.77
7.1.100.0040.00715.66
7.1.90.0040.01215.69
7.1.80.0110.00715.48
7.1.70.0070.00715.77
7.1.60.0090.00615.94
7.1.50.0080.00815.76
7.1.40.0060.00615.88
7.1.30.0070.01015.71
7.1.20.0020.00815.89
7.1.10.0030.00815.87
7.1.00.0090.00315.77
7.0.330.0070.00714.36
7.0.320.0100.00315.58
7.0.310.0090.00615.13
7.0.300.0060.00915.29
7.0.290.0050.00515.39
7.0.280.0130.00015.52
7.0.270.0070.01015.32
7.0.260.0130.00315.46
7.0.250.0000.01215.47
7.0.240.0150.00015.52
7.0.230.0040.01415.45
7.0.220.0070.00715.37
7.0.210.0070.00715.38
7.0.200.0090.00615.22
7.0.190.0060.00615.41
7.0.180.0100.00615.55
7.0.170.0030.01015.26
7.0.160.0040.00815.58
7.0.150.0070.01015.63
7.0.140.0040.00415.23
7.0.130.0040.00715.41
7.0.120.0030.00915.30
7.0.110.0030.00915.47
7.0.100.0110.00415.50
7.0.90.0070.00315.44
7.0.80.0050.00315.48
7.0.70.0070.00315.47
7.0.60.0060.01015.55
7.0.50.0070.00315.43
7.0.40.0030.00913.60
7.0.30.0080.00413.57
7.0.20.0100.00313.48
7.0.10.0040.00413.37
7.0.00.0070.00713.50
5.6.400.0030.00914.13
5.6.390.0150.00014.29
5.6.380.0120.00214.01
5.6.370.0080.00814.09
5.6.360.0030.01014.29
5.6.350.0030.01014.73
5.6.340.0060.00614.27
5.6.330.0070.00714.52
5.6.320.0090.00014.04
5.6.310.0030.00914.03
5.6.300.0000.01414.39
5.6.290.0030.01014.32
5.6.280.0040.00714.38
5.6.270.0040.00914.28
5.6.260.0000.01114.66
5.6.250.0040.01114.05
5.6.240.0030.01313.95
5.6.230.0050.00514.18
5.6.220.0000.01314.13
5.6.210.0080.00414.18
5.6.200.0000.01214.16
5.6.190.0050.00514.16
5.6.180.0000.01214.19
5.6.170.0030.00614.22
5.6.160.0040.00414.52
5.6.150.0000.01314.18
5.6.140.0000.01414.24
5.6.130.0040.01213.96
5.6.120.0120.00414.09
5.6.110.0000.00814.30
5.6.100.0060.00314.06
5.6.90.0030.01014.31
5.6.80.0070.00814.33
5.6.70.0030.00714.15
5.6.60.0070.00314.23
5.6.50.0070.01014.48
5.6.40.0040.00814.04
5.6.30.0070.00714.05
5.6.20.0050.01014.20
5.6.10.0040.00413.91
5.6.00.0000.01213.84

preferences:
70.3 ms | 401 KiB | 5 Q