3v4l.org

run code in 300+ PHP versions simultaneously
<?php $afr = function(&$v) use (&$afr) { if (is_array($v)) { foreach($v as $key=>$val) { if (empty($val)) unset($v[$key]); if (is_array($val)) $v[$key] = $afr($val); } } return $v.'modified'; }; $a = ['',['',['a', 'b'],'c'],'d']; $b = $a; var_dump($afr($b)); ?><hr><?php var_dump($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)
8.3.60.0100.01016.88
8.3.50.0120.00322.13
8.3.40.0110.00419.00
8.3.30.0070.01419.09
8.3.20.0030.00520.33
8.3.10.0000.00823.71
8.3.00.0040.00419.19
8.2.180.0140.00018.56
8.2.170.0100.01022.96
8.2.160.0030.01020.38
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0030.00918.96
8.2.110.0060.00322.20
8.2.100.0060.00617.91
8.2.90.0040.00419.34
8.2.80.0040.00417.97
8.2.70.0040.00417.75
8.2.60.0000.00817.79
8.2.50.0090.00318.07
8.2.40.0000.00820.07
8.2.30.0070.00018.18
8.2.20.0000.00817.64
8.2.10.0060.00318.20
8.2.00.0070.00417.68
8.1.280.0110.00325.92
8.1.270.0070.00323.71
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0060.00322.18
8.1.230.0070.00419.15
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0000.00917.25
8.1.190.0030.00517.23
8.1.180.0030.00618.10
8.1.170.0060.00318.64
8.1.160.0040.00421.95
8.1.150.0000.00718.76
8.1.140.0040.00817.37
8.1.130.0070.00017.84
8.1.120.0020.00517.47
8.1.110.0040.00417.33
8.1.100.0040.00417.36
8.1.90.0040.00417.49
8.1.80.0000.00817.48
8.1.70.0040.00417.48
8.1.60.0000.00717.63
8.1.50.0050.00317.59
8.1.40.0000.00717.53
8.1.30.0070.00717.57
8.1.20.0000.00817.55
8.1.10.0000.00817.50
8.1.00.0080.00017.43
8.0.300.0050.00218.77
8.0.290.0070.00017.05
8.0.280.0030.00318.44
8.0.270.0060.00317.26
8.0.260.0060.00317.32
8.0.250.0000.00816.97
8.0.240.0030.00317.00
8.0.230.0000.00716.91
8.0.220.0000.00717.04
8.0.210.0030.00516.88
8.0.200.0000.00616.99
8.0.190.0040.00417.08
8.0.180.0030.00317.04
8.0.170.0000.00716.99
8.0.160.0070.00016.96
8.0.150.0000.00716.90
8.0.140.0080.00016.86
8.0.130.0060.00313.41
8.0.120.0040.00416.86
8.0.110.0030.00316.87
8.0.100.0030.00616.82
8.0.90.0080.00016.99
8.0.80.0110.01117.00
8.0.70.0000.00716.99
8.0.60.0000.00716.87
8.0.50.0040.00416.89
8.0.30.0080.01017.01
8.0.20.0080.01817.40
8.0.10.0000.00717.02
8.0.00.0050.01716.77
7.4.330.0000.00615.05
7.4.320.0060.00016.64
7.4.300.0000.00616.65
7.4.290.0070.00016.48
7.4.280.0050.00316.51
7.4.270.0070.00016.51
7.4.260.0030.00316.64
7.4.250.0050.00216.34
7.4.240.0020.00516.53
7.4.230.0000.00716.54
7.4.220.0070.02016.57
7.4.210.0080.00816.63
7.4.200.0000.00716.64
7.4.190.0040.00416.63
7.4.160.0110.01116.59
7.4.150.0070.01117.40
7.4.140.0050.01717.86
7.4.130.0070.01116.61
7.4.120.0100.00716.42
7.4.110.0110.01116.74
7.4.100.0150.00316.52
7.4.90.0160.00316.45
7.4.80.0060.01219.39
7.4.70.0090.00916.41
7.4.60.0070.01116.37
7.4.50.0040.00416.31
7.4.40.0130.00316.60
7.4.30.0120.00916.60
7.4.00.0070.00714.76
7.3.330.0050.00013.39
7.3.320.0030.00613.39
7.3.310.0070.00016.45
7.3.300.0030.00316.45
7.3.290.0000.01816.43
7.3.280.0090.01016.44
7.3.270.0200.00017.40
7.3.260.0100.01416.35
7.3.250.0090.00916.46
7.3.240.0040.01316.34
7.3.230.0150.00716.62
7.3.210.0000.01616.42
7.3.200.0030.01919.39
7.3.190.0060.01616.51
7.3.180.0110.00616.60
7.3.170.0070.00716.64
7.3.160.0080.00916.45
7.3.120.0080.00414.71
7.2.330.0070.01116.73
7.2.320.0070.01016.44
7.2.310.0080.01116.75
7.2.300.0110.00716.41
7.2.290.0060.01216.81
7.2.60.0030.01016.91
7.1.200.0040.00415.73
7.1.70.0000.00817.34
7.1.60.0090.01519.46
7.1.50.0040.00717.10
7.1.00.0000.08022.33
7.0.200.0000.00716.75
7.0.140.0070.06722.08
7.0.60.0030.06019.94
7.0.50.0070.07717.74
7.0.40.0100.07720.30
7.0.30.0270.08020.17
7.0.20.0230.08020.12
7.0.10.0030.06720.26
7.0.00.0000.09020.09
5.6.280.0030.07321.07
5.6.210.0100.04320.47
5.6.200.0030.04018.19
5.6.190.0100.08020.48
5.6.180.0070.07720.46
5.6.170.0200.05720.54
5.6.160.0000.07720.50
5.6.150.0070.08718.14
5.6.140.0070.08018.14
5.6.130.0030.05018.18
5.6.120.0030.04320.97
5.6.110.0070.05320.98
5.6.100.0100.04021.09
5.6.90.0000.05021.10
5.6.80.0070.04020.39
5.5.350.0070.08020.41
5.5.340.0100.04717.98
5.5.330.0070.07320.38
5.5.320.0270.05020.29
5.5.310.0200.04720.34
5.5.300.0070.08017.98
5.5.290.0030.08317.96
5.5.280.0030.07720.98
5.5.270.0100.08020.76
5.5.260.0030.04020.84
5.5.250.0030.08020.55
5.5.240.0070.08320.27
5.4.450.0970.07019.39
5.4.440.0300.06319.20
5.4.430.0730.08019.42
5.4.420.0830.06719.44
5.4.410.1230.03719.40
5.4.400.1000.04319.16
5.4.390.0930.07019.14
5.4.380.0170.05318.77
5.4.370.0070.05718.79
5.4.360.0200.04318.55
5.4.350.0500.06318.58
5.4.340.0170.04718.44
5.4.320.0060.03712.51
5.4.310.0110.03312.50
5.4.300.0060.04312.50
5.4.290.0070.04312.50
5.4.280.0090.05112.40
5.4.270.0080.05012.39
5.4.260.0090.05512.40
5.4.250.0100.05412.39
5.4.240.0080.05412.39
5.4.230.0130.05012.39
5.4.220.0090.05312.38
5.4.210.0140.05512.39
5.4.200.0120.06712.39
5.4.190.0100.07212.38
5.4.180.0100.05512.39
5.4.170.0070.05812.40
5.4.160.0070.05612.39
5.4.150.0100.04912.38
5.4.140.0080.05112.07
5.4.130.0080.05112.06
5.4.120.0050.06312.02
5.4.110.0080.05412.01
5.4.100.0030.05912.01
5.4.90.0060.05512.01
5.4.80.0090.05312.02
5.4.70.0060.05412.01
5.4.60.0100.06012.01
5.4.50.0080.05212.01
5.4.40.0150.04412.00
5.4.30.0090.04912.00
5.4.20.0130.04712.00
5.4.10.0080.05011.99
5.4.00.0080.05011.48
5.3.290.0060.04912.80
5.3.280.0100.04912.71
5.3.270.0210.07412.73
5.3.260.0110.05112.71
5.3.250.0110.05012.71
5.3.240.0120.05112.72
5.3.230.0120.04912.71
5.3.220.0110.05412.68
5.3.210.0090.05312.68
5.3.200.0130.08012.68
5.3.190.0080.05212.67
5.3.180.0100.05112.68
5.3.170.0150.04612.67
5.3.160.0100.05112.67
5.3.150.0080.05212.67
5.3.140.0070.05312.66
5.3.130.0080.05412.66
5.3.120.0080.05512.66
5.3.110.0070.05512.66
5.3.100.0060.05212.12
5.3.90.0060.05312.11
5.3.80.0120.04712.09
5.3.70.0070.05212.09
5.3.60.0110.05412.08
5.3.50.0110.04612.02
5.3.40.0070.05212.02
5.3.30.0070.05011.98
5.3.20.0090.05111.77
5.3.10.0210.07011.73
5.3.00.0100.06611.71
5.2.170.0030.0479.18
5.2.160.0060.0429.18
5.2.150.0060.0429.18
5.2.140.0050.0429.17
5.2.130.0050.0429.14
5.2.120.0050.0409.14
5.2.110.0060.0409.15
5.2.100.0090.0609.14
5.2.90.0100.0459.14
5.2.80.0060.0599.14
5.2.70.0170.0839.14
5.2.60.0070.0409.09
5.2.50.0110.0379.05
5.2.40.0040.0509.03
5.2.30.0120.0529.02
5.2.20.0060.0449.01
5.2.10.0070.0498.93
5.2.00.0070.0488.79
5.1.60.0090.0318.07
5.1.50.0040.0338.06
5.1.40.0030.0268.05
5.1.30.0020.0288.40
5.1.20.0020.0328.42
5.1.10.0070.0358.14
5.1.00.0060.0248.14
5.0.50.0030.0216.62
5.0.40.0050.0216.48
5.0.30.0040.0366.29
5.0.20.0040.0206.26
5.0.10.0030.0216.24
5.0.00.0070.0376.23
4.4.90.0040.0214.78
4.4.80.0070.0174.75
4.4.70.0020.0224.75
4.4.60.0040.0204.76
4.4.50.0050.0204.77
4.4.40.0030.0344.71
4.4.30.0050.0194.76
4.4.20.0060.0164.84
4.4.10.0020.0174.85
4.4.00.0040.0264.76
4.3.110.0050.0214.67
4.3.100.0020.0234.67
4.3.90.0060.0184.64
4.3.80.0030.0324.58
4.3.70.0010.0234.63
4.3.60.0020.0184.63
4.3.50.0010.0184.63
4.3.40.0020.0274.53
4.3.30.0040.0163.28
4.3.20.0010.0193.25
4.3.10.0030.0173.22
4.3.00.0130.0207.24

preferences:
44.84 ms | 400 KiB | 5 Q