3v4l.org

run code in 300+ PHP versions simultaneously
<?php function return_json($obj) { ob_start(); header("Content-Type: application/json"); echo json_encode($obj); ob_end_flush(); exit; }

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)
8.3.60.0110.00718.15
8.3.50.0120.00317.82
8.3.40.0150.00018.69
8.3.30.0150.00018.61
8.3.20.0000.00818.73
8.3.10.0000.00823.36
8.3.00.0050.00320.96
8.2.180.0110.00718.18
8.2.170.0110.00722.96
8.2.160.0100.00322.25
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0080.00021.00
8.2.120.0080.00026.35
8.2.110.0000.00921.03
8.2.100.0040.00717.78
8.2.90.0030.00619.46
8.2.80.0060.00317.97
8.2.70.0000.00817.80
8.2.60.0000.00717.91
8.2.50.0000.00818.10
8.2.40.0000.01021.02
8.2.30.0040.00419.17
8.2.20.0050.00218.02
8.2.10.0000.00717.86
8.2.00.0040.00419.31
8.1.280.0110.00425.92
8.1.270.0040.00422.24
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00324.02
8.1.230.0040.00720.95
8.1.220.0030.00517.74
8.1.210.0030.00618.77
8.1.200.0040.00417.23
8.1.190.0110.00317.00
8.1.180.0000.00918.10
8.1.170.0050.00318.46
8.1.160.0030.00618.75
8.1.150.0040.00418.72
8.1.140.0030.00322.18
8.1.130.0000.00720.05
8.1.120.0030.00317.35
8.1.110.0080.00017.21
8.1.100.0050.00317.32
8.1.90.0000.00717.32
8.1.80.0000.00917.30
8.1.70.0060.00317.25
8.1.60.0060.00317.32
8.1.50.0070.00717.35
8.1.40.0000.00917.34
8.1.30.0040.00417.43
8.1.20.0000.00817.57
8.1.10.0040.00417.31
8.1.00.0040.00417.33
8.0.300.0070.00019.90
8.0.290.0000.00816.63
8.0.280.0030.00318.30
8.0.270.0000.00717.03
8.0.260.0000.00618.30
8.0.250.0060.00016.71
8.0.240.0000.00616.80
8.0.230.0000.00716.72
8.0.220.0110.00016.67
8.0.210.0030.00616.62
8.0.200.0060.00016.68
8.0.190.0080.00016.81
8.0.180.0080.00016.70
8.0.170.0040.00416.66
8.0.160.0040.00416.77
8.0.150.0030.00616.52
8.0.140.0050.00316.69
8.0.130.0000.00513.14
8.0.120.0040.00416.68
8.0.110.0040.00416.69
8.0.100.0030.00316.70
8.0.90.0000.00716.80
8.0.80.0100.00716.77
8.0.70.0070.00016.73
8.0.60.0000.00716.65
8.0.50.0040.00416.74
8.0.30.0060.00916.81
8.0.20.0070.01217.40
8.0.10.0040.00416.94
8.0.00.0100.01216.55
7.4.330.0000.00515.55
7.4.320.0020.00516.36
7.4.300.0060.00016.28
7.4.290.0070.00016.39
7.4.280.0050.00316.50
7.4.270.0030.00316.39
7.4.260.0040.00416.42
7.4.250.0000.00716.46
7.4.240.0070.00016.27
7.4.230.0030.00316.48
7.4.220.0080.00016.44
7.4.210.0080.00716.47
7.4.200.0070.00016.44
7.4.160.0090.00716.25
7.4.140.0100.00817.86
7.4.130.0170.00316.28
7.4.120.0080.01216.33
7.4.110.0070.01516.32
7.4.100.0090.01016.50
7.4.90.0000.01716.49
7.4.80.0040.01519.39
7.4.70.0070.01516.32
7.4.60.0120.00916.40
7.4.50.0040.00816.36
7.4.40.0070.01016.22
7.4.10.0120.00814.60
7.4.00.0090.00714.53
7.3.330.0050.00013.13
7.3.320.0000.00512.96
7.3.310.0000.00716.09
7.3.300.0070.00016.00
7.3.290.0030.00316.03
7.3.280.0010.01316.16
7.3.260.0100.00816.29
7.3.240.0110.00716.28
7.3.230.0100.00716.34
7.3.210.0100.01016.40
7.3.200.0080.00816.25
7.3.190.0070.01016.09
7.3.180.0100.00716.41
7.3.170.0090.01216.39
7.3.160.0030.01216.13
7.3.130.0000.01614.66
7.3.120.0080.01214.55
7.3.110.0120.00614.63
7.3.100.0040.00814.59
7.3.90.0060.00914.39
7.3.80.0030.00714.65
7.3.70.0060.00614.54
7.3.60.0000.01414.82
7.3.50.0100.00314.52
7.3.40.0110.00714.43
7.3.30.0000.01214.79
7.3.20.0060.00616.57
7.3.10.0030.01116.61
7.3.00.0040.00816.59
7.2.330.0090.00916.54
7.2.320.0070.01016.23
7.2.310.0060.01016.54
7.2.300.0040.01216.32
7.2.290.0080.00816.46
7.2.260.0070.01315.09
7.2.250.0070.01014.70
7.2.240.0060.00614.60
7.2.230.0060.01014.91
7.2.220.0080.00614.60
7.2.210.0060.00614.59
7.2.200.0000.00914.80
7.2.190.0090.00614.77
7.2.180.0070.00714.66
7.2.170.0100.00714.93
7.2.160.0140.00014.57
7.2.150.0060.01016.84
7.2.140.0060.00916.77
7.2.130.0070.00716.79
7.2.120.0720.00715.44
7.2.110.0760.01215.59
7.2.100.0390.00715.65
7.2.90.0460.00515.41
7.2.80.0930.00815.63
7.2.70.0690.00815.55
7.2.60.0410.01015.61
7.2.50.0590.01315.74
7.2.40.0840.00915.84
7.2.30.0410.00915.76
7.2.20.0700.00615.80
7.2.10.0490.00515.87
7.2.00.0390.00915.48
7.1.330.0120.00315.46
7.1.320.0000.01415.71
7.1.310.0030.01015.52
7.1.300.0000.01415.34
7.1.290.0080.00515.57
7.1.280.0030.01015.61
7.1.270.0080.00415.65
7.1.260.0000.00915.73
7.1.250.0030.01015.53
7.1.240.0900.00814.59
7.1.230.0510.00914.61
7.1.220.0470.00514.73
7.1.210.0410.00414.45
7.1.200.0780.01014.69
7.1.190.0860.00714.68
7.1.180.0820.00914.76
7.1.170.0810.00714.61
7.1.160.0960.01214.62
7.1.150.0510.00614.56
7.1.140.0660.00714.70
7.1.130.0500.01014.70
7.1.120.0700.00514.80
7.1.110.0850.00314.66
7.1.100.0500.00914.68
7.1.90.0420.00814.75
7.1.80.0710.00714.73
7.1.70.0370.00914.66
7.1.60.0400.01014.67
7.1.50.0360.00914.47
7.1.40.0290.00814.34
7.1.30.0380.01214.50
7.1.20.0630.00914.60
7.1.10.0620.01014.63
7.1.00.0720.00914.59
7.0.330.0000.01215.45
7.0.320.0080.00615.19
7.0.310.0090.00615.34
7.0.300.0040.00415.30
7.0.290.0000.01615.45
7.0.280.0060.00615.01
7.0.270.0060.01015.29
7.0.260.0070.00315.36
7.0.250.0100.00715.32
7.0.240.0120.00615.30
7.0.230.0080.00015.30
7.0.220.0100.00315.23
7.0.210.0040.00715.22
7.0.200.0100.00614.89
7.0.190.0030.01215.29
7.0.180.0050.00515.46
7.0.170.0090.00615.39
7.0.160.0030.01015.30
7.0.150.0040.01115.29
7.0.140.0070.00715.20
7.0.130.0040.00415.24
7.0.120.0040.00715.42
7.0.110.0160.00015.43
7.0.100.0060.00915.10
7.0.90.0060.01015.17
7.0.80.0030.01315.04
7.0.70.0030.00915.33
7.0.60.0060.00615.05
7.0.50.0030.00915.43
7.0.40.0060.00613.11
7.0.30.0030.01313.30
7.0.20.0030.00713.30
7.0.10.0040.00713.51
7.0.00.0030.01013.37
5.6.400.0060.00914.16
5.6.390.0070.00714.25
5.6.380.0120.00514.31
5.6.370.0070.01013.96
5.6.360.0060.00914.02
5.6.350.0070.01014.00
5.6.340.0040.00714.22
5.6.330.0100.00614.16
5.6.320.0090.00314.31
5.6.310.0070.00713.91
5.6.300.0040.01014.25
5.6.290.0070.01014.29
5.6.280.0030.01314.41
5.6.270.0030.00514.08
5.6.260.0060.00614.45
5.6.250.0070.00713.93
5.6.240.0000.01214.10
5.6.230.0040.01114.07
5.6.220.0000.01014.14
5.6.210.0070.01013.97
5.6.200.0040.01213.97
5.6.190.0100.00314.26
5.6.180.0040.00713.99
5.6.170.0030.00613.90
5.6.160.0030.00614.07
5.6.150.0090.00614.00
5.6.140.0060.00914.00
5.6.130.0070.00714.22
5.6.120.0000.01214.14
5.6.110.0100.00314.00
5.6.100.0110.00414.04
5.6.90.0000.00914.06
5.6.80.0070.00413.99
5.6.70.0060.00314.13
5.6.60.0040.00814.06
5.6.50.0070.00714.16
5.6.40.0070.01013.80
5.6.30.0030.00613.94
5.6.20.0030.01313.84
5.6.10.0080.00313.97
5.6.00.0000.01614.11

preferences:
64.81 ms | 401 KiB | 5 Q