3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo $p = json_encode(array('Foo', array('baz' => 14, 45 => 'Bar'))); print_r(json_decode($p, true));

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)
8.3.40.0120.00318.71
8.3.30.0190.00319.09
8.3.20.0080.00020.16
8.3.10.0140.00423.47
8.3.00.0090.00918.93
8.2.170.0130.01022.96
8.2.160.0000.01420.35
8.2.150.0030.00624.18
8.2.140.0030.00624.66
8.2.130.0080.00026.16
8.2.120.0060.00620.88
8.2.110.0060.00322.30
8.2.100.0070.00420.40
8.2.90.0040.00419.05
8.2.80.0040.00417.97
8.2.70.0060.00317.63
8.2.60.0050.00318.04
8.2.50.0040.00418.07
8.2.40.0060.00319.88
8.2.30.0030.00518.23
8.2.20.0040.00417.68
8.2.10.0000.00717.98
8.2.00.0050.00317.65
8.1.270.0000.01023.84
8.1.260.0150.00326.35
8.1.250.0110.00728.09
8.1.240.0090.00022.11
8.1.230.0030.00719.15
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0050.00517.23
8.1.190.0040.00417.23
8.1.180.0080.00018.10
8.1.170.0000.00818.70
8.1.160.0000.00821.95
8.1.150.0000.00818.44
8.1.140.0090.00017.43
8.1.130.0000.00817.71
8.1.120.0000.00717.32
8.1.110.0040.00417.25
8.1.100.0070.00017.34
8.1.90.0030.00717.41
8.1.80.0000.01017.38
8.1.70.0000.00817.28
8.1.60.0080.00017.53
8.1.50.0000.00817.43
8.1.40.0080.00017.41
8.1.30.0040.00417.41
8.1.20.0000.00817.42
8.1.10.0030.00517.55
8.1.00.0000.00817.45
8.0.300.0040.00418.77
8.0.290.0030.00616.63
8.0.280.0000.00718.31
8.0.270.0030.00317.26
8.0.260.0050.00217.20
8.0.250.0030.00317.01
8.0.240.0000.00716.83
8.0.230.0040.00416.72
8.0.220.0070.00016.71
8.0.210.0040.00416.70
8.0.200.0040.00416.92
8.0.190.0000.00816.84
8.0.180.0070.00016.73
8.0.170.0000.00716.70
8.0.160.0040.00416.90
8.0.150.0030.00516.72
8.0.140.0040.00416.80
8.0.130.0000.00613.13
8.0.120.0080.00016.75
8.0.110.0000.00816.73
8.0.100.0000.00716.64
8.0.90.0000.00816.84
8.0.80.0090.00916.75
8.0.70.0040.00416.63
8.0.60.0040.00416.78
8.0.50.0000.00716.77
8.0.30.0080.01117.11
8.0.20.0060.01317.40
8.0.10.0040.00416.88
8.0.00.0110.00716.72
7.4.330.0050.00015.02
7.4.320.0070.00016.34
7.4.300.0000.00616.32
7.4.290.0070.00016.42
7.4.280.0100.00316.45
7.4.270.0030.00316.38
7.4.260.0060.00316.41
7.4.250.0000.00716.41
7.4.240.0050.00216.51
7.4.230.0050.00216.62
7.4.220.0180.00916.54
7.4.210.0130.00616.54
7.4.200.0000.00716.63
7.4.190.0070.00016.57
7.4.160.0150.00016.39
7.4.150.0150.00317.40
7.4.140.0090.01117.86
7.4.130.0080.00816.36
7.4.120.0060.01016.43
7.4.110.0140.00316.41
7.4.100.0130.00416.52
7.4.90.0100.00716.38
7.4.80.0190.01219.39
7.4.70.0040.01416.38
7.4.60.0150.00616.45
7.4.50.0030.00316.57
7.4.40.0040.01216.30
7.4.30.0100.00616.43
7.4.00.0070.00714.52
7.3.330.0050.00012.88
7.3.320.0050.00012.85
7.3.310.0000.00716.21
7.3.300.0000.00716.11
7.3.290.0030.01016.08
7.3.280.0050.01016.12
7.3.270.0120.00617.40
7.3.260.0120.00616.41
7.3.250.0120.00516.40
7.3.240.0060.00916.48
7.3.230.0130.00316.39
7.3.210.0100.00616.29
7.3.200.0160.00019.39
7.3.190.0090.01116.10
7.3.180.0080.00816.27
7.3.170.0090.00616.43
7.3.160.0060.01516.36
7.3.120.0060.00814.53
7.2.330.0110.00716.32
7.2.320.0130.00316.65
7.2.310.0030.01616.41
7.2.300.0100.01016.55
7.2.290.0000.01716.34
7.2.00.0170.00819.04
7.1.100.0060.00918.09
7.1.70.0090.00617.09
7.1.60.0000.02319.70
7.1.50.0100.01316.85
7.1.00.0000.07722.27
7.0.200.0050.00516.74
7.0.140.0030.07322.09
7.0.90.0170.04719.89
7.0.80.0170.05319.84
7.0.70.0100.06319.90
7.0.60.0030.05319.95
7.0.50.0070.05320.23
7.0.40.0130.03720.07
7.0.30.0130.03320.14
7.0.20.0070.04020.09
7.0.10.0030.03720.19
7.0.00.0130.03320.03
5.6.280.0100.06720.98
5.6.240.0170.03020.64
5.6.230.0030.08020.67
5.6.220.0000.04720.66
5.6.210.0000.06320.58
5.6.200.0030.05321.11
5.6.190.0070.04720.95
5.6.180.0070.04321.13
5.6.170.0070.04020.93
5.6.160.0000.03720.94
5.6.150.0070.03021.16
5.6.140.0030.03721.10
5.6.130.0030.04320.93
5.6.120.0070.03721.00
5.6.110.0100.03720.99
5.6.100.0030.04321.04
5.6.90.0000.04320.91
5.6.80.0070.03720.55
5.6.70.0000.03720.44
5.6.60.0100.02720.38
5.6.50.0000.04720.38
5.6.40.0030.03320.41
5.6.30.0030.03720.43
5.6.20.0030.04020.31
5.6.10.0000.04020.52
5.6.00.0030.03720.34
5.5.380.0100.04720.56
5.5.370.0000.07020.39
5.5.360.0130.07320.34
5.5.350.0130.07720.46
5.5.340.0100.06020.73
5.5.330.0070.04320.84
5.5.320.0030.04320.82
5.5.310.0070.03720.75
5.5.300.0030.04320.91
5.5.290.0030.03720.75
5.5.280.0100.03020.72
5.5.270.0070.04320.89
5.5.260.0070.04320.84
5.5.250.0030.04320.69
5.5.240.0000.03720.21
5.5.230.0030.03720.23
5.5.220.0030.04020.29
5.5.210.0000.03720.12
5.5.200.0070.03020.21
5.5.190.0030.04020.21
5.5.180.0000.04019.96
5.5.160.0100.03020.19
5.5.150.0030.03720.27
5.5.140.0100.03019.98
5.5.130.0000.03720.09
5.5.120.0030.04020.25
5.5.110.0000.04320.09
5.5.100.0070.03720.00
5.5.90.0100.03020.06
5.5.80.0030.04019.96
5.5.70.0030.03320.09
5.5.60.0100.03320.02
5.5.50.0000.03720.13
5.5.40.0000.04320.13
5.5.30.0030.03720.02
5.5.20.0000.03720.06
5.5.10.0070.06020.02
5.5.00.0100.07720.10
5.4.450.0070.03719.55
5.4.440.0030.04019.33
5.4.430.0100.03319.37
5.4.420.0000.04019.57
5.4.410.0070.04019.25
5.4.400.0030.03719.14
5.4.390.0070.03019.12
5.4.380.0070.03019.05
5.4.370.0000.03319.14
5.4.360.0100.03319.05
5.4.350.0000.03319.03
5.4.340.0030.04018.88
5.4.320.0000.04319.20
5.4.310.0030.03018.88
5.4.300.0070.03319.04
5.4.290.0070.03019.04
5.4.280.0070.05718.87
5.4.270.0070.04018.96
5.4.260.0000.04019.12
5.4.250.0070.03319.08
5.4.240.0030.03319.17
5.4.230.0000.04019.04
5.4.220.0030.04019.17
5.4.210.0000.03319.20
5.4.200.0070.03319.11
5.4.190.0000.04019.03
5.4.180.0000.03319.11
5.4.170.0070.04319.15
5.4.160.0170.07018.88
5.4.150.0030.04319.02
5.4.140.0130.03016.40
5.4.130.0000.05316.28
5.4.120.0130.06716.36
5.4.110.0000.04716.51
5.4.100.0100.07016.36
5.4.90.0030.08016.39
5.4.80.0130.06016.34
5.4.70.0170.06316.41
5.4.60.0000.07316.37
5.4.50.0130.03316.31
5.4.40.0070.07316.46
5.4.30.0030.06016.52
5.4.20.0000.08016.43
5.4.10.0170.06016.39
5.4.00.0070.05715.84
5.3.290.0070.03314.75
5.3.280.0030.04014.59
5.3.270.0070.05714.53
5.3.260.0030.08314.64
5.3.250.0030.05014.66
5.3.240.0070.03314.69
5.3.230.0130.04314.61
5.3.220.0100.06314.61
5.3.210.0070.07014.65
5.3.200.0130.06314.61
5.3.190.0100.06714.55
5.3.180.0130.06014.59
5.3.170.0100.05014.61
5.3.160.0070.07714.51
5.3.150.0070.06714.64
5.3.140.0070.06314.50
5.3.130.0070.07314.56
5.3.120.0130.07014.51
5.3.110.0100.06314.68
5.3.100.0200.06013.99
5.3.90.0070.07313.94
5.3.80.0030.07714.04
5.3.70.0130.04314.10
5.3.60.0100.06713.92
5.3.50.0000.07713.83
5.3.40.0130.05713.87
5.3.30.0130.06713.95
5.3.20.0030.05013.62
5.3.10.0030.07313.55
5.3.00.0000.07313.62
5.2.170.0030.06311.21
5.2.160.0100.05011.04
5.2.150.0030.05011.20
5.2.140.0070.06011.19
5.2.130.0030.06310.91
5.2.120.0100.05311.15
5.2.110.0070.06311.20
5.2.100.0070.05011.17
5.2.90.0000.04311.10
5.2.80.0030.04011.22
5.2.70.0070.07011.11
5.2.60.0100.05711.08
5.2.50.0000.06011.06
5.2.40.0030.05310.99
5.2.30.0030.06011.10
5.2.20.0070.05711.01
5.2.10.0030.04310.96
5.2.00.0070.05310.71
5.1.60.0030.0539.98
5.1.50.0000.0539.83
5.1.40.0070.04710.00
5.1.30.0030.04710.39
5.1.20.0030.03310.37
5.1.10.0000.03010.07
5.1.00.0030.05310.14
5.0.50.0030.0338.59
5.0.40.0000.0438.38
5.0.30.0070.0638.22
5.0.20.0030.0578.22
5.0.10.0030.0278.16
5.0.00.0070.0578.14
4.4.90.0070.0337.10
4.4.80.0070.0337.10
4.4.70.0000.0377.10
4.4.60.0030.0337.10
4.4.50.0000.0377.10
4.4.40.0000.0537.10
4.4.30.0000.0377.10
4.4.20.0000.0207.10
4.4.10.0070.0307.10
4.4.00.0000.0537.10
4.3.110.0030.0337.10
4.3.100.0000.0237.10
4.3.90.0030.0307.10
4.3.80.0030.0537.10
4.3.70.0100.0237.10
4.3.60.0000.0307.10
4.3.50.0000.0337.10
4.3.40.0030.0507.10
4.3.30.0070.0307.10
4.3.20.0000.0307.10
4.3.10.0000.0237.10
4.3.00.0030.0177.10

preferences:
37.05 ms | 400 KiB | 5 Q