3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo json_encode($a);

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)
8.3.70.0040.01116.38
8.3.60.0080.00816.63
8.3.50.0110.00918.16
8.3.40.0100.00718.80
8.3.30.0070.00718.54
8.3.20.0040.00420.31
8.3.10.0070.00022.09
8.3.00.0050.00223.53
8.2.190.0100.00716.63
8.2.180.0140.00016.63
8.2.170.0090.00622.96
8.2.160.0070.00720.35
8.2.150.0000.00724.18
8.2.140.0040.00424.66
8.2.130.0070.00022.26
8.2.120.0040.00426.35
8.2.110.0100.00019.32
8.2.100.0110.00017.72
8.2.90.0080.00019.02
8.2.80.0000.00817.97
8.2.70.0030.00617.50
8.2.60.0040.00417.93
8.2.50.0050.00218.10
8.2.40.0040.00420.46
8.2.30.0000.00719.09
8.2.20.0050.00218.08
8.2.10.0000.00817.82
8.2.00.0000.00817.98
8.1.280.0140.00025.92
8.1.270.0120.00620.36
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00623.83
8.1.230.0090.00317.72
8.1.220.0030.00617.74
8.1.210.0040.00718.77
8.1.200.0060.00317.22
8.1.190.0050.00317.00
8.1.180.0070.00018.10
8.1.170.0040.00418.60
8.1.160.0070.00018.68
8.1.150.0000.00719.98
8.1.140.0070.00017.35
8.1.130.0030.00318.94
8.1.120.0040.00417.36
8.1.110.0030.00617.30
8.1.100.0040.00417.29
8.1.90.0000.00717.25
8.1.80.0000.00917.14
8.1.70.0070.00017.33
8.1.60.0040.00417.48
8.1.50.0040.00417.21
8.1.40.0000.00717.40
8.1.30.0000.00717.45
8.1.20.0000.00817.50
8.1.10.0000.00717.45
8.1.00.0000.00717.41
8.0.300.0120.00018.77
8.0.290.0000.00716.88
8.0.280.0040.00418.30
8.0.270.0000.00817.18
8.0.260.0050.00518.43
8.0.250.0040.00416.84
8.0.240.0050.00316.94
8.0.230.0030.00616.89
8.0.220.0000.00716.84
8.0.210.0030.00316.77
8.0.200.0070.00016.88
8.0.190.0060.00316.79
8.0.180.0000.00716.75
8.0.170.0040.00416.84
8.0.160.0070.00016.85
8.0.150.0060.00316.80
8.0.140.0040.00416.77
8.0.130.0050.00413.23
8.0.120.0040.00416.77
8.0.110.0040.00416.70
8.0.100.0040.00416.65
8.0.90.0040.00416.61
8.0.80.0150.00616.85
8.0.70.0040.01416.83
8.0.60.0120.00316.67
8.0.50.0120.00316.78
8.0.30.0120.00717.02
8.0.20.0150.01217.30
8.0.10.0040.01216.90
8.0.00.0100.00616.77
7.4.330.0020.00215.55
7.4.320.0030.00316.35
7.4.300.0000.00616.28
7.4.290.0100.00016.26
7.4.280.0000.00716.30
7.4.270.0070.00016.34
7.4.260.0000.00716.44
7.4.250.0030.00316.32
7.4.240.0000.00816.33
7.4.230.0030.00316.21
7.4.220.0060.01116.54
7.4.210.0070.01516.42
7.4.200.0070.00716.41
7.4.190.0030.01116.41
7.4.180.0070.00716.56
7.4.160.0040.01116.41
7.4.150.0080.00816.90
7.4.140.0090.00917.53
7.4.130.0100.00716.36
7.4.120.0080.01016.41
7.4.110.0110.00616.53
7.4.100.0120.00516.46
7.4.90.0050.01116.24
7.4.80.0070.01117.90
7.4.70.0080.00916.42
7.4.60.0020.01416.27
7.4.50.0080.00716.28
7.4.40.0070.00816.49
7.4.30.0110.00416.36
7.4.20.0070.00916.29
7.4.10.0100.00516.22
7.4.00.0060.00615.66
7.3.330.0000.00812.99
7.3.320.0000.00513.02
7.3.310.0030.00316.11
7.3.300.0070.00016.21
7.3.290.0080.00516.21
7.3.280.0080.00916.19
7.3.270.0070.00816.78
7.3.260.0090.00916.38
7.3.250.0120.00616.16
7.3.240.0080.00816.35
7.3.230.0120.00616.31
7.3.220.0090.00616.08
7.3.210.0090.00716.26
7.3.200.0030.01216.33
7.3.190.0100.00616.17
7.3.180.0110.00716.17
7.3.170.0050.01316.17
7.3.160.0060.00916.18
7.3.150.0120.00316.11
7.3.140.0000.01416.05
7.3.130.0040.01116.03
7.3.120.0060.01216.66
7.3.110.0060.00916.59
7.3.100.0100.00516.60
7.3.90.0100.00516.76
7.3.80.0040.00916.62
7.3.70.0090.00516.66
7.3.60.0070.00616.74
7.3.50.0040.01216.70
7.3.40.0050.01016.70
7.3.30.0090.00316.72
7.3.20.0060.00816.70
7.3.10.0060.00616.59
7.3.00.0020.01216.66
7.2.340.0120.00316.13
7.2.330.0100.00716.34
7.2.320.0070.01216.30
7.2.310.0170.00016.24
7.2.300.0100.00816.36
7.2.290.0070.01116.30
7.2.280.0130.00616.17
7.2.270.0060.01216.14
7.2.260.0030.01216.17
7.2.250.0060.01016.23
7.2.240.0080.00616.65
7.2.230.0080.00516.70
7.2.220.0070.00516.67
7.2.210.0080.00616.69
7.2.200.0040.00816.70
7.2.190.0050.01016.71
7.2.180.0080.00816.76
7.2.170.0090.00616.78
7.2.160.0050.00916.76
7.2.150.0100.00516.78
7.2.140.0050.00716.79
7.2.130.0060.00616.89
7.2.120.0120.00616.82
7.2.110.0060.01016.81
7.2.100.0060.00916.85
7.2.90.0070.00816.77
7.2.80.0060.00816.76
7.2.70.0390.00316.75
7.2.60.0050.01016.77
7.2.50.0090.00816.81
7.2.40.0060.00916.83
7.2.30.0080.00816.83
7.2.20.0050.01116.81
7.2.10.0110.00616.80
7.2.00.0100.01016.81
7.1.330.0130.00716.35
7.1.320.0120.00816.39
7.1.310.0140.00716.34
7.1.300.0090.00916.32
7.1.290.0100.00616.36
7.1.280.0090.01016.33
7.1.270.0150.00616.34
7.1.260.0190.00216.32
7.1.250.0110.01116.28
7.1.240.0150.00915.38
7.1.230.0040.01915.47
7.1.220.0140.01415.39
7.1.210.0230.00615.43
7.1.200.0210.01215.57
7.1.190.0230.01115.43
7.1.180.0210.01115.39
7.1.170.0190.00915.36
7.1.160.0120.01615.38
7.1.150.0200.00815.39
7.1.140.0300.01115.44
7.1.130.0180.00715.52
7.1.120.0240.00615.37
7.1.110.0130.01315.35
7.1.100.1330.00815.83
7.1.90.0170.01215.81
7.1.80.1280.00915.79
7.1.70.0160.01215.30
7.1.60.1640.01424.29
7.1.50.0540.01124.16
7.1.40.0680.01323.92
7.1.30.0330.01224.08
7.1.20.1810.01124.04
7.1.10.0770.00615.02
7.1.00.1040.00415.03
7.0.330.0500.00915.05
7.0.320.0210.00515.06
7.0.310.0130.01215.06
7.0.300.0160.01315.02
7.0.290.0200.00314.95
7.0.280.0130.01015.13
7.0.270.0130.01015.04
7.0.260.0180.01215.05
7.0.250.0130.01415.16
7.0.240.1270.00615.38
7.0.230.0770.01015.29
7.0.220.0280.00815.36
7.0.210.0190.00814.90
7.0.200.0180.01314.97
7.0.190.0340.01215.06
7.0.180.0260.00914.72
7.0.170.1380.00714.74
7.0.160.1250.01114.66
7.0.150.0120.01014.81
7.0.140.0170.01014.72
7.0.130.1040.00614.73
7.0.120.1150.01014.96
7.0.110.1010.00614.65
7.0.100.1030.00814.78
7.0.90.0420.01014.75
7.0.80.1190.00814.76
7.0.70.1090.00514.73
7.0.60.0580.00814.55
7.0.50.0200.00314.89
7.0.40.0980.00814.83
7.0.30.0490.01115.01
7.0.20.0090.01114.77
7.0.10.1090.01114.83
7.0.00.1020.01114.91
5.6.400.0090.00915.78
5.6.390.0240.00715.74
5.6.380.0170.01215.58
5.6.370.0100.02015.72
5.6.360.0190.00715.69
5.6.350.0160.01215.59
5.6.340.0180.00715.68
5.6.330.0160.01615.63
5.6.320.0270.00015.58
5.6.310.0310.00015.62
5.6.300.0180.00915.60
5.6.290.0130.01315.65
5.6.280.0180.01215.68
5.6.270.0220.00615.55
5.6.260.0220.01115.64
5.6.250.0090.01815.50
5.6.240.0040.02115.67
5.6.230.0110.01515.67
5.6.220.0170.01115.74
5.6.210.0160.00815.68
5.6.200.0120.01315.79
5.6.190.0160.00915.67
5.6.180.0210.00715.71
5.6.170.0180.00715.92
5.6.160.0180.00615.67
5.6.150.0140.01115.75
5.6.140.0110.01315.86
5.6.130.0150.00815.69
5.6.120.0130.01015.77
5.6.110.0170.00615.68
5.6.100.0200.00315.66
5.6.90.0180.00415.54
5.6.80.0170.00615.63
5.6.70.0180.00415.81
5.6.60.0160.00515.73
5.6.50.0100.01615.54
5.6.40.0190.00515.69
5.6.30.0150.01215.69
5.6.20.0110.01815.49
5.6.10.0220.00815.73
5.6.00.0220.01015.61

preferences:
50.61 ms | 401 KiB | 5 Q