3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [1, 2, 3]; echo implode(',', $array), "\n"; foreach ($array as &$value) {} // by reference echo implode(',', $array), "\n"; foreach ($array as $value) {} // by value (i.e., copy) echo implode(',', $array), "\n";

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
8.3.50.0160.00321.88
8.3.40.0070.01118.71
8.3.30.0070.00718.75
8.3.20.0040.00420.32
8.3.10.0040.00423.61
8.3.00.0050.00219.22
8.2.180.0040.01418.16
8.2.170.0070.00722.96
8.2.160.0110.00818.79
8.2.150.0030.00524.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00420.75
8.2.110.0110.00022.12
8.2.100.0000.01217.78
8.2.90.0030.00519.05
8.2.80.0030.00617.97
8.2.70.0040.00417.38
8.2.60.0080.00017.93
8.2.50.0040.00818.07
8.2.40.0080.00021.15
8.2.30.0070.00018.14
8.2.20.0000.00817.73
8.2.10.0000.00718.02
8.2.00.0000.00817.66
8.1.280.0060.00925.92
8.1.270.0040.00423.79
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0030.00622.72
8.1.230.0060.00617.52
8.1.220.0000.00917.88
8.1.210.0030.00618.77
8.1.200.0040.00417.35
8.1.190.0000.00817.35
8.1.180.0100.00018.10
8.1.170.0000.00818.64
8.1.160.0050.00322.04
8.1.150.0040.00418.63
8.1.140.0090.00417.44
8.1.130.0040.00417.81
8.1.120.0000.00717.50
8.1.110.0030.00417.33
8.1.100.0040.00417.44
8.1.90.0030.00417.40
8.1.80.0070.00017.37
8.1.70.0000.00717.38
8.1.60.0000.00817.56
8.1.50.0040.00417.50
8.1.40.0040.00417.52
8.1.30.0040.00417.63
8.1.20.0000.00717.53
8.1.10.0050.00317.49
8.1.00.0040.00417.50
8.0.300.0000.00718.77
8.0.290.0070.00016.63
8.0.280.0030.00318.43
8.0.270.0030.00317.23
8.0.260.0030.00317.20
8.0.250.0070.00016.95
8.0.240.0000.00716.91
8.0.230.0070.00416.86
8.0.220.0000.00716.87
8.0.210.0000.00716.90
8.0.200.0060.00016.95
8.0.190.0070.00016.94
8.0.180.0040.00416.84
8.0.170.0000.00716.82
8.0.160.0040.00316.90
8.0.150.0000.00716.80
8.0.140.0070.00016.77
8.0.130.0000.00513.28
8.0.120.0000.00816.83
8.0.110.0000.00716.78
8.0.100.0000.00716.74
8.0.90.0050.00216.75
8.0.80.0130.00916.86
8.0.70.0070.00016.71
8.0.60.0000.00716.84
8.0.50.0000.00716.85
8.0.30.0090.01016.93
8.0.20.0120.00917.40
8.0.10.0040.00416.92
8.0.00.0090.00916.73
7.4.330.0020.00215.00
7.4.320.0030.00316.45
7.4.300.0070.00016.43
7.4.290.0030.00616.42
7.4.280.0030.00616.39
7.4.270.0040.00416.60
7.4.260.0000.00816.61
7.4.250.0040.00416.45
7.4.240.0020.00616.51
7.4.230.0030.00316.43
7.4.220.0120.00616.51
7.4.210.0030.01016.57
7.4.200.0000.00716.30
7.4.190.0080.00016.63
7.4.160.0090.00616.38
7.4.150.0120.00617.40
7.4.140.0150.00617.86
7.4.130.0100.00716.46
7.4.120.0110.00916.44
7.4.110.0100.00716.39
7.4.100.0100.00716.50
7.4.90.0090.00916.46
7.4.80.0090.00919.39
7.4.70.0160.00016.42
7.4.60.0090.01316.52
7.4.50.0050.00316.29
7.4.40.0080.00816.56
7.4.30.0100.00616.43
7.4.00.0060.00914.96
7.3.330.0030.00313.19
7.3.320.0000.00513.09
7.3.310.0050.00316.45
7.3.300.0030.00316.30
7.3.290.0000.01316.27
7.3.280.0090.00516.20
7.3.270.0060.01217.40
7.3.260.0070.01916.47
7.3.250.0120.00416.54
7.3.240.0080.01516.50
7.3.230.0110.00716.39
7.3.210.0070.01116.46
7.3.200.0170.00619.39
7.3.190.0110.00616.51
7.3.180.0120.00416.47
7.3.170.0090.00916.66
7.3.160.0080.00916.28
7.3.120.0100.00714.80
7.3.10.0000.01116.55
7.3.00.0070.00716.73
7.2.330.0000.01816.52
7.2.320.0100.00616.48
7.2.310.0130.00316.48
7.2.300.0060.00916.42
7.2.290.0080.01216.48
7.2.130.0000.01516.53
7.2.120.0070.00816.75
7.2.110.0130.00016.56
7.2.100.0060.01017.00
7.2.90.0060.00916.95
7.2.80.0040.00817.07
7.2.70.0120.00316.80
7.2.60.0060.00616.95
7.2.50.0040.01116.68
7.2.40.0070.01016.91
7.2.30.0150.00017.01
7.2.20.0060.00916.91
7.2.10.0000.01516.97
7.2.00.0100.00518.12
7.1.250.0040.00815.65
7.1.100.0070.01018.26
7.1.70.0000.00816.99
7.1.60.0000.01416.84
7.1.50.0090.01216.56
7.1.00.0030.07722.36
7.0.200.0000.00816.79
7.0.140.0030.07321.99
7.0.60.0100.04319.96
7.0.50.0000.08717.80
7.0.40.0030.09320.05
7.0.30.0330.07320.00
7.0.20.0230.08020.32
7.0.10.0130.08020.30
7.0.00.0130.08320.11
5.6.210.0130.07320.62
5.6.200.0030.07318.21
5.6.190.0100.08020.42
5.6.180.3470.04720.61
5.6.170.0270.07320.46
5.6.160.0130.07020.44
5.6.150.0030.04318.22
5.6.140.0100.06018.18
5.6.130.0100.07718.16
5.6.120.0030.07321.14
5.6.110.0030.05721.04
5.6.100.0030.06021.01
5.6.90.0130.07021.05
5.6.80.0030.07020.38
5.6.70.4370.04320.42
5.5.350.0030.08020.40
5.5.340.0070.07717.88
5.5.330.0070.08020.20
5.5.320.3100.04020.14
5.5.310.0170.05720.26
5.5.300.0130.07717.98
5.5.290.0070.07018.00
5.5.280.0000.09720.87
5.5.270.0070.04320.88
5.5.260.0100.08020.86
5.5.250.0200.03320.58
5.5.240.0100.03720.06
5.4.450.0400.04319.43
5.4.440.0270.04319.26
5.4.430.0370.04044.52
5.4.420.0270.05042.31
5.4.410.0370.03739.98
5.4.400.0370.04037.90
5.4.390.0070.05335.90
5.4.380.0170.07318.68
5.4.370.0130.07318.70
5.4.360.0170.05318.55
5.4.350.0170.05318.59
5.4.340.0170.05018.63
5.4.320.0040.03812.45
5.4.310.0040.04712.45
5.4.300.0070.05312.46
5.4.290.0100.05412.45
5.4.280.0120.04912.35
5.4.270.0100.04912.35
5.4.260.0130.04812.35
5.4.250.0040.04112.35
5.4.240.0070.03612.35
5.4.230.0040.04012.34
5.4.220.0070.03712.34
5.4.210.0060.03612.34
5.4.200.0020.04712.34
5.4.190.0060.04312.34
5.4.180.0090.03812.34
5.4.170.0100.05012.35
5.4.160.0070.04312.34
5.4.150.0030.04112.34
5.4.140.0060.04412.03
5.4.130.0090.04112.01
5.4.120.0110.04611.98
5.4.110.0070.04311.96
5.4.100.0080.04611.96
5.4.90.0050.04211.96
5.4.80.0060.04111.96
5.4.70.0070.03811.96
5.4.60.0100.03611.96
5.4.50.0050.04111.96
5.4.40.0050.04111.95
5.4.30.0050.03711.95
5.4.20.0110.03611.95
5.4.10.0040.04011.95
5.4.00.0060.04111.43
5.3.290.0040.04612.80
5.3.280.0060.04212.71
5.3.270.0060.04412.72
5.3.260.0100.04012.71
5.3.250.0120.03812.72
5.3.240.0090.04612.72
5.3.230.0060.04712.71
5.3.220.0100.05012.68
5.3.210.0110.05012.68
5.3.200.0080.05212.68
5.3.190.0110.04612.68
5.3.180.0090.04912.68
5.3.170.0080.04912.66
5.3.160.0090.04812.67
5.3.150.0100.04712.68
5.3.140.0050.05112.66
5.3.130.0080.05112.66
5.3.120.0110.04912.66
5.3.110.0070.05312.66
5.3.100.0080.04712.12
5.3.90.0070.05012.08
5.3.80.0050.05012.08
5.3.70.0100.04312.07
5.3.60.0130.04112.06
5.3.50.0070.04912.00
5.3.40.0070.05012.00
5.3.30.0070.04811.95
5.3.20.0040.04911.72
5.3.10.0090.04411.70
5.3.00.0090.04711.68
5.2.170.0070.0409.18
5.2.160.0080.0379.18
5.2.150.0040.0439.18
5.2.140.0070.0399.18
5.2.130.0030.0429.14
5.2.120.0060.0389.14
5.2.110.0080.0379.15
5.2.100.0090.0359.14
5.2.90.0090.0369.14
5.2.80.0060.0409.14
5.2.70.0030.0449.14
5.2.60.0060.0419.09
5.2.50.0050.0379.06
5.2.40.0060.0279.03
5.2.30.0050.0309.01
5.2.20.0030.0309.00
5.2.10.0060.0328.93
5.2.00.0070.0288.78
5.1.60.0060.0248.06
5.1.50.0060.0258.06
5.1.40.0060.0388.05
5.1.30.0070.0328.40
5.1.20.0060.0258.41
5.1.10.0060.0248.14
5.1.00.0030.0278.14
5.0.50.0020.0216.62
5.0.40.0060.0176.48
5.0.30.0020.0326.29
5.0.20.0040.0186.27
5.0.10.0030.0206.23
5.0.00.0030.0316.23
4.4.90.0020.0164.78
4.4.80.0080.0114.75
4.4.70.0030.0164.76
4.4.60.0040.0174.76
4.4.50.0030.0214.77
4.4.40.0010.0374.71
4.4.30.0050.0174.76
4.4.20.0040.0154.84
4.4.10.0030.0164.85
4.4.00.0040.0284.76
4.3.110.0030.0224.67
4.3.100.0070.0234.67
4.3.90.0060.0174.63
4.3.80.0070.0324.58
4.3.70.0050.0184.63
4.3.60.0030.0244.63
4.3.50.0050.0384.62
4.3.40.0040.0244.54
4.3.30.0020.0173.28
4.3.20.0010.0193.26
4.3.10.0040.0153.22
4.3.00.0100.01734.59

preferences:
49.94 ms | 401 KiB | 5 Q