3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = [1,2,3,"r" => "fsdfsdf"]; var_dump(json_encode(json_encode($foo)));

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)
8.3.40.0030.01218.55
8.3.30.0070.01018.77
8.3.20.0000.00721.76
8.3.10.0060.00323.59
8.3.00.0000.00817.91
8.2.170.0100.00722.96
8.2.160.0030.01020.85
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0040.00422.15
8.2.120.0030.00526.35
8.2.110.0060.00320.38
8.2.100.0080.00417.84
8.2.90.0030.00619.05
8.2.80.0040.00417.97
8.2.70.0060.00617.25
8.2.60.0040.00417.90
8.2.50.0030.00619.38
8.2.40.0000.00820.42
8.2.30.0040.00420.28
8.2.20.0040.00417.93
8.2.10.0070.00018.04
8.2.00.0040.00417.98
8.1.270.0070.00023.91
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00723.84
8.1.230.0110.00017.70
8.1.220.0030.00517.74
8.1.210.0050.00318.77
8.1.200.0030.00617.23
8.1.190.0040.00417.10
8.1.180.0000.00818.10
8.1.170.0040.00418.52
8.1.160.0040.00418.72
8.1.150.0000.00720.25
8.1.140.0050.00319.48
8.1.130.0070.00018.77
8.1.120.0000.00717.45
8.1.110.0000.00717.35
8.1.100.0050.00217.35
8.1.90.0030.00517.38
8.1.80.0080.00017.36
8.1.70.0000.00717.38
8.1.60.0030.00517.48
8.1.50.0040.00417.35
8.1.40.0090.00017.48
8.1.30.0040.00417.59
8.1.20.0000.00717.47
8.1.10.0000.00717.48
8.1.00.0040.00417.35
8.0.300.0000.00718.77
8.0.290.0040.00416.75
8.0.280.0070.00018.37
8.0.270.0070.00017.22
8.0.260.0060.00016.75
8.0.250.0000.00716.83
8.0.240.0000.00716.89
8.0.230.0030.00416.89
8.0.220.0070.00016.75
8.0.210.0000.00716.80
8.0.200.0060.00016.86
8.0.190.0000.00816.87
8.0.180.0040.00416.85
8.0.170.0000.00716.83
8.0.160.0040.00416.85
8.0.150.0000.00716.78
8.0.140.0030.00316.66
8.0.130.0000.00813.20
8.0.120.0000.00716.77
8.0.110.0040.00416.93
8.0.100.0000.00716.71
8.0.90.0020.00516.88
8.0.80.0030.01316.72
8.0.70.0030.00316.80
8.0.60.0000.00716.68
8.0.50.0000.00716.80
8.0.30.0120.00716.83
8.0.20.0130.00717.40
8.0.10.0050.00316.98
8.0.00.0000.01716.75
7.4.330.0000.00515.55
7.4.320.0000.00616.48
7.4.300.0030.00316.43
7.4.290.0040.00416.52
7.4.280.0060.00316.52
7.4.270.0000.00716.48
7.4.260.0030.00316.46
7.4.250.0000.00716.31
7.4.240.0030.00316.53
7.4.230.0030.00316.32
7.4.220.0120.00616.54
7.4.210.0070.00716.49
7.4.200.0030.00316.61
7.4.160.0100.00816.42
7.4.150.0140.00417.40
7.4.140.0110.01117.86
7.4.130.0100.01716.40
7.4.120.0080.01116.28
7.4.110.0030.01416.43
7.4.100.0120.00616.52
7.4.90.0100.00716.40
7.4.80.0110.00719.39
7.4.70.0120.00616.35
7.4.60.0140.00416.51
7.4.50.0110.00716.27
7.4.40.0030.01316.46
7.4.30.0160.00416.33
7.4.10.0060.01215.07
7.4.00.0060.01114.85
7.3.330.0030.00312.93
7.3.320.0060.00012.86
7.3.310.0000.00716.07
7.3.300.0040.00416.18
7.3.290.0050.01116.12
7.3.280.0070.01116.16
7.3.270.0150.00317.40
7.3.260.0060.01016.05
7.3.250.0120.00816.18
7.3.240.0100.01016.31
7.3.230.0090.00916.17
7.3.210.0160.00016.10
7.3.200.0120.00316.23
7.3.190.0070.01016.17
7.3.180.0070.01016.39
7.3.170.0070.01016.14
7.3.160.0090.01216.21
7.3.130.0100.00714.54
7.3.120.0060.01114.66
7.3.110.0080.00914.71
7.3.100.0060.01014.65
7.3.90.0080.00814.60
7.3.80.0030.00914.54
7.3.70.0060.00814.68
7.3.60.0050.00714.58
7.3.50.0070.00714.65
7.3.40.0040.00914.73
7.3.30.0050.00914.71
7.3.20.0070.00716.46
7.3.10.0030.01016.47
7.3.00.0040.00816.42
7.2.330.0060.01316.56
7.2.320.0130.01016.50
7.2.310.0040.01416.43
7.2.300.0060.01016.53
7.2.290.0080.00816.51
7.2.260.0090.01014.81
7.2.250.0080.01014.83
7.2.240.0070.00814.87
7.2.230.0050.01214.77
7.2.220.0040.00915.04
7.2.210.0050.00814.72
7.2.200.0080.00614.80
7.2.190.0050.01014.71
7.2.180.0060.00714.92
7.2.170.0080.00614.82
7.2.160.0070.00714.81
7.2.150.0100.00116.52
7.2.140.0120.00516.80
7.2.130.0040.00916.74
7.2.120.0060.00716.79
7.2.110.0070.00616.69
7.2.100.0070.00716.74
7.2.90.0080.00716.61
7.2.80.0110.00416.84
7.2.70.0070.00716.66
7.2.60.0060.00816.71
7.2.50.0050.00816.81
7.2.40.0040.00716.49
7.2.30.0060.00616.76
7.2.20.0050.00916.72
7.2.10.0030.01016.67
7.2.00.0050.00616.83
7.1.330.0060.00715.57
7.1.320.0060.01015.72
7.1.310.0050.01015.76
7.1.300.0070.00315.71
7.1.290.0060.00815.54
7.1.280.0050.01015.57
7.1.270.0070.00715.74
7.1.260.0090.00415.65
7.1.250.0060.00715.71
7.1.240.0070.00715.53
7.1.230.0030.00815.76
7.1.220.0000.01115.50
7.1.210.0030.01015.55
7.1.200.0060.00515.69
7.1.190.0060.00815.61
7.1.180.0060.00615.73
7.1.170.0020.00815.46
7.1.160.0070.00415.82
7.1.150.0020.01215.77
7.1.140.0080.00315.63
7.1.130.0040.00615.77
7.1.120.0070.00315.64
7.1.110.0080.00215.51
7.1.100.0050.00815.93
7.1.90.0040.01015.68
7.1.80.0080.00615.86
7.1.70.0060.00416.16
7.1.60.0290.01121.46
7.1.50.0320.01121.45
7.1.40.0310.01221.31
7.1.30.0290.00921.27
7.1.20.0290.00521.32
7.1.10.0190.00915.31
7.1.00.0310.00815.45
7.0.330.0050.00815.42
7.0.320.0000.01315.35
7.0.310.0030.01015.22
7.0.300.0050.00915.29
7.0.290.0070.00215.27
7.0.280.0070.00815.32
7.0.270.0050.01015.36
7.0.260.0080.00115.10
7.0.250.0050.00915.18
7.0.240.0050.00615.37
7.0.230.0020.01215.17
7.0.220.0060.00515.29
7.0.210.0060.00615.31
7.0.200.0240.01115.21
7.0.190.0230.00915.20
7.0.180.0200.00814.93
7.0.170.0260.00915.02
7.0.160.0240.00515.02
7.0.150.0280.01214.88
7.0.140.0170.01215.13
7.0.130.0170.00715.05
7.0.120.0310.00915.09
7.0.110.0230.00915.05
7.0.100.0170.00815.00
7.0.90.0240.00515.15
7.0.80.0380.00615.05
7.0.70.0230.00715.15
7.0.60.0270.00914.83
7.0.50.0200.01015.15
7.0.40.0180.00813.79
7.0.30.0250.00813.79
7.0.20.0250.00513.70
7.0.10.0230.00913.73
7.0.00.0180.00713.78
5.6.400.0050.00714.17
5.6.390.0050.00714.25
5.6.380.0030.00914.53
5.6.370.0110.00314.02
5.6.360.0090.00514.38
5.6.350.0050.00914.20
5.6.340.0050.01014.36
5.6.330.0020.00914.18
5.6.320.0060.00814.38
5.6.310.0040.00714.36
5.6.300.0050.00814.13
5.6.290.0100.00414.11
5.6.280.0040.01014.35
5.6.270.0060.00614.10
5.6.260.0060.00714.20
5.6.250.0050.00914.10
5.6.240.0050.01014.12
5.6.230.0070.00714.14
5.6.220.0070.00714.14
5.6.210.0040.01314.24
5.6.200.0100.00414.29
5.6.190.0060.00814.17
5.6.180.0050.00514.04
5.6.170.0050.00814.19
5.6.160.0050.01114.10
5.6.150.0050.00914.34
5.6.140.0060.00714.20
5.6.130.0080.00914.26
5.6.120.0100.00514.10
5.6.110.0090.00614.09
5.6.100.0050.00813.95
5.6.90.0020.01414.35
5.6.80.0010.00814.08
5.6.70.0050.00913.95
5.6.60.0110.00314.08
5.6.50.0080.00514.03
5.6.40.0030.01114.01
5.6.30.0040.01214.04
5.6.20.0050.00714.13
5.6.10.0050.00514.10
5.6.00.0050.00514.06

preferences:
66.84 ms | 400 KiB | 5 Q