3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array( 'camelCase' => ' value and things', 'non_camel_case' => 'Other stuff', array('a','b','c')); print_r($arr); $json = json_encode($arr); echo $json;

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)
8.3.60.0070.00718.43
8.3.50.0100.00717.77
8.3.40.0080.00818.67
8.3.30.0070.00719.27
8.3.20.0030.00720.13
8.3.10.0050.00320.23
8.3.00.0060.00319.25
8.2.180.0140.00316.50
8.2.170.0070.01022.96
8.2.160.0030.01220.38
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0000.00722.24
8.2.110.0030.00620.47
8.2.100.0110.00017.71
8.2.90.0040.00419.09
8.2.80.0000.00817.97
8.2.70.0050.00317.38
8.2.60.0000.00718.04
8.2.50.0090.00018.07
8.2.40.0040.00418.03
8.2.30.0000.00719.34
8.2.20.0000.00717.63
8.2.10.0040.00417.99
8.2.00.0070.00017.76
8.1.280.0070.01025.92
8.1.270.0040.00422.02
8.1.260.0030.00626.35
8.1.250.0000.00828.09
8.1.240.0060.00323.73
8.1.230.0060.00620.84
8.1.220.0040.00417.74
8.1.210.0000.00918.77
8.1.200.0040.00417.22
8.1.190.0040.00417.10
8.1.180.0080.00018.10
8.1.170.0030.00518.66
8.1.160.0070.00022.02
8.1.150.0000.00818.70
8.1.140.0040.00417.29
8.1.130.0000.00717.88
8.1.120.0000.00717.42
8.1.110.0030.00317.35
8.1.100.0040.00417.36
8.1.90.0050.00317.28
8.1.80.0050.00217.23
8.1.70.0030.00317.36
8.1.60.0000.00817.40
8.1.50.0030.00517.47
8.1.40.0000.00817.53
8.1.30.0050.00317.57
8.1.20.0050.00317.56
8.1.10.0070.00017.51
8.1.00.0080.00017.32
8.0.300.0000.00718.77
8.0.290.0030.00516.58
8.0.280.0000.00818.43
8.0.270.0030.00317.26
8.0.260.0030.00317.21
8.0.250.0070.00016.95
8.0.240.0060.00316.82
8.0.230.0030.00316.86
8.0.220.0040.00416.82
8.0.210.0000.00716.83
8.0.200.0030.00516.79
8.0.190.0000.00716.81
8.0.180.0040.00416.90
8.0.170.0000.00816.91
8.0.160.0030.00416.86
8.0.150.0000.00716.76
8.0.140.0070.00016.71
8.0.130.0060.00313.32
8.0.120.0050.00216.81
8.0.110.0080.00016.70
8.0.100.0040.00416.71
8.0.90.0000.00716.87
8.0.80.0040.01216.74
8.0.70.0050.00316.88
8.0.60.0070.00016.64
8.0.50.0040.00416.71
8.0.30.0070.01416.93
8.0.20.0100.01217.40
8.0.10.0070.00016.98
8.0.00.0130.00416.54
7.4.330.0050.00015.00
7.4.320.0030.00316.45
7.4.300.0040.00416.43
7.4.290.0000.00716.45
7.4.280.0000.00716.43
7.4.270.0030.00316.48
7.4.260.0000.00716.49
7.4.250.0040.00416.47
7.4.240.0050.00216.55
7.4.230.0000.00716.61
7.4.220.0140.00416.58
7.4.210.0060.01316.48
7.4.200.0080.00016.26
7.4.160.0130.00316.67
7.4.150.0100.00717.40
7.4.140.0080.01117.86
7.4.130.0090.01116.40
7.4.120.0140.00416.48
7.4.110.0080.01616.46
7.4.100.0090.01316.52
7.4.90.0080.00816.46
7.4.80.0140.00319.39
7.4.70.0080.00816.45
7.4.60.0090.00616.40
7.4.50.0080.00016.28
7.4.40.0080.00816.18
7.4.30.0060.01616.44
7.4.00.0060.00614.75
7.3.330.0030.00313.11
7.3.320.0050.00013.13
7.3.310.0000.00716.19
7.3.300.0040.00416.29
7.3.290.0030.01316.25
7.3.280.0080.00916.25
7.3.270.0110.00517.40
7.3.260.0030.01416.28
7.3.250.0140.00416.32
7.3.240.0080.00816.57
7.3.230.0060.01216.39
7.3.210.0090.00916.37
7.3.200.0160.00619.39
7.3.190.0090.00916.56
7.3.180.0110.00416.39
7.3.170.0150.00316.31
7.3.160.0090.00616.16
7.3.10.0110.00416.51
7.3.00.0070.00716.57
7.2.330.0130.00616.58
7.2.320.0030.01416.32
7.2.310.0170.00016.55
7.2.300.0090.00816.64
7.2.290.0100.00716.40
7.2.130.0000.01816.81
7.2.120.0060.00616.48
7.2.110.0030.01316.70
7.2.100.0060.00616.82
7.2.90.0160.00416.77
7.2.80.0040.01216.82
7.2.70.0090.01216.68
7.2.60.0130.01016.93
7.2.50.0060.01216.78
7.2.40.0100.00716.82
7.2.30.0030.01316.68
7.2.20.0070.01016.94
7.2.10.0060.01016.84
7.2.00.0060.00916.55
7.1.250.0090.00315.96
7.1.70.0020.00517.16
7.1.60.0060.00619.12
7.1.50.0110.01116.66
7.1.00.0030.07722.41
7.0.200.0000.00716.93
7.0.140.0030.06722.08
7.0.90.0300.07719.91
7.0.80.0130.07019.96
7.0.70.0100.07719.91
7.0.60.0070.04019.98
7.0.50.0030.04320.25
7.0.40.0200.07720.10
7.0.30.0070.06720.13
7.0.20.0100.04320.14
7.0.10.0070.06719.99
7.0.00.0100.07320.02
5.6.280.0030.07720.81
5.6.240.0100.05720.63
5.6.230.0100.07020.68
5.6.220.0030.07720.58
5.6.210.0000.04720.74
5.6.200.0070.04321.08
5.6.190.0100.05021.02
5.6.180.0000.05021.04
5.6.170.0130.06721.16
5.6.160.0070.04721.06
5.6.150.0030.05321.13
5.6.140.0070.04721.13
5.6.130.0000.07720.93
5.6.120.0070.07021.02
5.6.110.0070.05721.04
5.6.100.0130.07021.06
5.6.90.0030.09021.02
5.6.80.0100.03320.41
5.6.70.0130.06020.54
5.6.60.0070.08020.42
5.6.50.0070.08720.42
5.6.40.0030.05020.39
5.6.30.0000.05320.44
5.6.20.0130.05320.37
5.6.10.0070.04320.42
5.6.00.0100.03720.38
5.5.380.0130.07720.41
5.5.370.0230.05320.39
5.5.360.0070.08720.32
5.5.350.0130.03720.45
5.5.340.0030.04320.91
5.5.330.0130.06720.82
5.5.320.0130.08020.86
5.5.310.0070.05020.86
5.5.300.0030.08720.82
5.5.290.0130.07020.86
5.5.280.0100.07020.89
5.5.270.0070.07720.81
5.5.260.0070.05720.86
5.5.250.0070.07720.66
5.5.240.0100.08020.30
5.5.230.0030.08320.20
5.5.220.0070.07720.25
5.5.210.0030.04320.24
5.5.200.0100.07320.24
5.5.190.0000.04320.23
5.5.180.0100.07720.26
5.5.160.0170.06320.24
5.5.150.0100.05020.21
5.5.140.0070.05320.11
5.5.130.0100.06320.22
5.5.120.0070.03720.11
5.5.110.0070.06320.09
5.5.100.0170.06720.16
5.5.90.0070.06320.04
5.5.80.0170.05020.05
5.5.70.0130.06720.05
5.5.60.0070.03719.95
5.5.50.0000.05020.04
5.5.40.0070.07720.04
5.5.30.0170.06320.07
5.5.20.0100.04020.09
5.5.10.0100.07720.03
5.5.00.0030.04320.03
5.4.450.0000.08319.36
5.4.440.0030.07019.50
5.4.430.0070.05019.52
5.4.420.0100.04019.35
5.4.410.0130.04319.04
5.4.400.0070.04019.18
5.4.390.0100.09018.89
5.4.380.0070.07019.18
5.4.370.0100.06719.03
5.4.360.0030.07719.10
5.4.350.0070.04018.95
5.4.340.0070.06019.16
5.4.320.0100.06718.84
5.4.310.0100.03319.09
5.4.300.0070.06019.17
5.4.290.0070.06319.20
5.4.280.0100.04319.12
5.4.270.0000.07019.18
5.4.260.0170.06719.20
5.4.250.0200.06319.20
5.4.240.0130.07018.89
5.4.230.0070.07719.02
5.4.220.0030.06718.89
5.4.210.0130.06719.22
5.4.200.0100.06718.86
5.4.190.0100.03719.11
5.4.180.0100.07719.02
5.4.170.0170.06319.09
5.4.160.0100.07718.88
5.4.150.0070.05718.82
5.4.140.0100.03316.29
5.4.130.0070.04716.36
5.4.120.0000.04016.39
5.4.110.0030.03716.43
5.4.100.0130.03316.42
5.4.90.0030.04016.45
5.4.80.0070.05716.46
5.4.70.0000.04316.42
5.4.60.0070.06316.44
5.4.50.0100.07016.36
5.4.40.0070.07716.54
5.4.30.0070.07316.27
5.4.20.0170.06316.46
5.4.10.0100.05716.33
5.4.00.0100.05315.89
5.3.290.0070.04714.68
5.3.280.0130.05714.59
5.3.270.0030.05014.53
5.3.260.0100.06714.58
5.3.250.0070.05014.65
5.3.240.0070.06714.62
5.3.230.0000.04714.58
5.3.220.0130.02714.65
5.3.210.0170.04014.53
5.3.200.0030.03714.68
5.3.190.0070.07314.68
5.3.180.0130.03014.48
5.3.170.0070.03714.45
5.3.160.0070.08014.57
5.3.150.0030.04714.50
5.3.140.0070.06714.64
5.3.130.0000.04014.49
5.3.120.0030.04314.66
5.3.110.0100.04014.60
5.3.100.0030.07313.96
5.3.90.0000.04714.02
5.3.80.0130.06714.04
5.3.70.0030.04013.98
5.3.60.0070.06314.11
5.3.50.0030.06713.86
5.3.40.0070.06713.86
5.3.30.0030.04313.89
5.3.20.0070.05013.60
5.3.10.0070.06313.70
5.3.00.0100.03313.60
5.2.170.0030.05711.00
5.2.160.0000.06011.27
5.2.150.0030.05011.20
5.2.140.0000.06311.14
5.2.130.0000.04311.14
5.2.120.0070.05711.18
5.2.110.0070.05310.95
5.2.100.0100.04311.16
5.2.90.0030.03011.16
5.2.80.0000.04011.20
5.2.70.0030.05711.21
5.2.60.0030.06011.18
5.2.50.0070.04011.14
5.2.40.0100.06311.05
5.2.30.0070.06011.10
5.2.20.0070.03011.03
5.2.10.0070.02710.97
5.2.00.0070.06010.73
5.1.60.0030.03310.05
5.1.50.0100.0509.82
5.1.40.0100.0379.96
5.1.30.0100.02710.35
5.1.20.0070.02310.37
5.1.10.0000.02710.05
5.1.00.0000.02710.11
5.0.50.0030.0208.61
5.0.40.0070.0208.45
5.0.30.0000.0308.24
5.0.20.0030.0178.29
5.0.10.0000.0208.21
5.0.00.0030.0308.20
4.4.90.0000.0307.03
4.4.80.0070.0307.03
4.4.70.0000.0207.03
4.4.60.0000.0177.03
4.4.50.0000.0337.03
4.4.40.0070.0507.03
4.4.30.0030.0337.03
4.4.20.0030.0137.03
4.4.10.0030.0177.03
4.4.00.0070.0207.03
4.3.110.0000.0177.03
4.3.100.0070.0107.03
4.3.90.0030.0137.03
4.3.80.0070.0177.03
4.3.70.0030.0137.03
4.3.60.0030.0207.03
4.3.50.0000.0137.03
4.3.40.0030.0377.03
4.3.30.0000.0177.03
4.3.20.0000.0177.03
4.3.10.0000.0137.03
4.3.00.0000.0177.03

preferences:
51.93 ms | 400 KiB | 5 Q