3v4l.org

run code in 300+ PHP versions simultaneously
<?php function by_tag($things) { $sorted = array(); foreach ($things as $thing) { $thing['title'] = "new title"; # this works! $thing['size'] = 100; # this doesn't work, it keeps the old value. array_push($sorted, $thing); } return $sorted; } $unsorted = array( array('foo' => 'bar1', 'size' => 1, 'title' => 'changeme1'), array('foo' => 'bar2', 'size' => 2, 'title' => 'changeme2'), array('foo' => 'bar3', 'size' => 3, 'title' => 'changeme3'), array('foo' => 'bar4', 'size' => 4, 'title' => 'changeme4'), array('foo' => 'bar5', 'size' => 5, 'title' => 'changeme5') ); var_dump(by_tag($unsorted));

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)
8.3.40.0140.00418.44
8.3.30.0000.01419.09
8.3.20.0050.00220.22
8.3.10.0040.00423.61
8.3.00.0080.00019.26
8.2.170.0040.01122.96
8.2.160.0140.00020.25
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0100.01026.16
8.2.120.0030.00622.21
8.2.110.0070.00322.05
8.2.100.0110.00017.84
8.2.90.0050.00319.36
8.2.80.0090.00017.97
8.2.70.0040.00417.63
8.2.60.0030.00517.93
8.2.50.0040.00418.07
8.2.40.0000.00819.95
8.2.30.0000.00819.79
8.2.20.0000.00817.81
8.2.10.0040.00418.05
8.2.00.0030.00917.66
8.1.270.0040.00423.79
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0000.00922.01
8.1.230.0080.00417.52
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0090.00017.35
8.1.190.0000.00817.40
8.1.180.0040.00418.10
8.1.170.0000.00818.66
8.1.160.0040.00521.97
8.1.150.0000.00718.50
8.1.140.0080.00017.45
8.1.130.0000.00817.80
8.1.120.0000.00717.42
8.1.110.0040.00417.38
8.1.100.0060.00517.40
8.1.90.0040.00417.46
8.1.80.0040.00417.51
8.1.70.0070.00017.44
8.1.60.0080.00017.62
8.1.50.0080.00017.46
8.1.40.0000.00817.50
8.1.30.0050.00317.46
8.1.20.0040.00417.67
8.1.10.0030.00617.53
8.1.00.0080.00017.50
8.0.300.0080.00018.77
8.0.290.0040.00416.75
8.0.280.0000.00718.52
8.0.270.0040.00417.11
8.0.260.0000.00717.34
8.0.250.0030.00316.96
8.0.240.0030.00317.01
8.0.230.0000.00716.99
8.0.220.0000.00716.80
8.0.210.0030.00616.83
8.0.200.0000.00616.99
8.0.190.0040.00416.98
8.0.180.0040.00416.82
8.0.170.0040.00416.93
8.0.160.0050.00316.86
8.0.150.0070.00016.83
8.0.140.0040.00416.86
8.0.130.0030.00313.33
8.0.120.0040.00416.83
8.0.110.0040.00416.86
8.0.100.0040.00416.96
8.0.90.0040.00416.73
8.0.80.0060.01716.90
8.0.70.0000.00716.91
8.0.60.0000.00716.92
8.0.50.0000.00716.74
8.0.30.0140.00917.05
8.0.20.0120.00917.41
8.0.10.0000.00717.01
8.0.00.0100.00716.73
7.4.330.0060.00015.13
7.4.320.0070.00016.50
7.4.300.0030.00316.67
7.4.290.0070.00016.56
7.4.280.0000.00916.48
7.4.270.0000.00716.42
7.4.260.0080.00016.63
7.4.250.0040.00416.54
7.4.240.0020.00616.56
7.4.230.0000.00816.69
7.4.220.0070.01016.64
7.4.210.0100.00816.51
7.4.200.0070.00016.58
7.4.190.0000.00716.58
7.4.160.0100.00716.59
7.4.150.0110.00817.40
7.4.140.0110.00817.86
7.4.130.0120.00716.63
7.4.120.0110.00616.47
7.4.110.0110.01116.49
7.4.100.0130.00716.51
7.4.90.0090.00916.43
7.4.80.0190.00419.39
7.4.70.0120.00816.60
7.4.60.0100.01016.43
7.4.50.0000.00516.58
7.4.40.0000.01422.77
7.4.30.0100.00616.65
7.4.00.0120.00314.74
7.3.330.0000.00613.34
7.3.320.0000.00613.39
7.3.310.0080.00016.38
7.3.300.0030.00316.41
7.3.290.0030.01116.36
7.3.280.0070.01016.37
7.3.270.0060.01217.40
7.3.260.0150.00316.33
7.3.250.0140.00516.41
7.3.240.0090.00916.55
7.3.230.0140.00716.39
7.3.210.0130.00416.51
7.3.200.0120.00419.39
7.3.190.0040.01416.28
7.3.180.0120.00416.49
7.3.170.0090.00616.41
7.3.160.0090.00816.40
7.3.120.0090.00614.45
7.2.330.0030.01616.64
7.2.320.0060.01216.44
7.2.310.0000.02316.72
7.2.300.0110.00716.57
7.2.290.0060.01116.60
7.2.60.0000.01316.94
7.1.200.0130.00015.57
7.1.100.0000.01517.69
7.1.70.0060.00916.95
7.1.60.0040.01519.46
7.1.50.0220.01334.84
7.1.00.0000.08022.33
7.0.200.0110.01116.80
7.0.140.0070.07021.95
7.0.100.0070.09019.95
7.0.90.0070.08319.93
7.0.80.0070.08319.91
7.0.70.0100.08019.95
7.0.60.0130.06019.95
7.0.50.0030.04720.26
7.0.40.0100.07720.04
7.0.30.0130.08320.19
7.0.20.0130.06720.10
7.0.10.0170.07319.95
7.0.00.0030.09020.00
5.6.280.0030.07321.02
5.6.250.0030.08020.77
5.6.240.0030.08320.68
5.6.230.0270.03320.74
5.6.220.0070.09020.46
5.6.210.0130.07020.46
5.6.200.0070.08721.03
5.6.190.0170.07321.05
5.6.180.0030.08320.94
5.6.170.0130.07720.95
5.6.160.0270.06321.13
5.6.150.0000.08720.93
5.6.140.0070.07721.08
5.6.130.0100.08321.14
5.6.120.0200.07020.95
5.6.110.0100.05321.11
5.6.100.0170.06720.94
5.6.90.0070.06720.93
5.6.80.0030.08320.40
5.6.70.0130.05720.45
5.6.60.0100.05020.41
5.6.50.0000.04320.42
5.6.40.0030.04020.43
5.6.30.0000.04320.32
5.6.20.0130.03320.32
5.6.10.0030.04020.41
5.6.00.0100.03720.47
5.5.380.0170.06720.34
5.5.370.0070.05720.56
5.5.360.0130.07720.34
5.5.350.0030.08320.47
5.5.340.0030.08320.78
5.5.330.0100.08320.75
5.5.320.0230.05720.65
5.5.310.0030.06020.93
5.5.300.0070.06020.64
5.5.290.0100.08320.74
5.5.280.0070.07720.91
5.5.270.0100.07720.91
5.5.260.0130.04720.91
5.5.250.0100.07720.75
5.5.240.0070.08020.29
5.5.230.0030.06020.27
5.5.220.0030.06720.21
5.5.210.0030.04020.15
5.5.200.0100.03320.09
5.5.190.0000.04320.25
5.5.180.0100.03320.14
5.5.160.0100.07720.16
5.5.150.0100.05020.21
5.5.140.0130.06020.13
5.5.130.0130.06720.16
5.5.120.0070.06020.12
5.5.110.0070.07320.15
5.5.100.0070.04320.07
5.5.90.0000.04320.07
5.5.80.0030.04020.02
5.5.70.0030.07720.06
5.5.60.0030.07019.94
5.5.50.0030.07720.09
5.5.40.0100.03720.11
5.5.30.0030.04020.06
5.5.20.0070.06720.15
5.5.10.0070.03720.13
5.5.00.0030.04020.00
5.4.450.0170.07319.47
5.4.440.0070.08319.51
5.4.430.0070.04319.46
5.4.420.0100.08019.53
5.4.410.0030.07719.24
5.4.400.0100.07319.05
5.4.390.0070.07018.90
5.4.380.0000.04018.90
5.4.370.0070.05019.13
5.4.360.0070.04019.05
5.4.350.0030.03719.08
5.4.340.0100.06719.05
5.4.320.0100.07319.04
5.4.310.0030.07718.95
5.4.300.0000.04019.21
5.4.290.0030.06019.18
5.4.280.0070.03719.18
5.4.270.0030.06719.03
5.4.260.0100.03719.23
5.4.250.0030.05319.04
5.4.240.0000.05319.23
5.4.230.0030.03718.84
5.4.220.0000.04019.03
5.4.210.0170.05319.18
5.4.200.0100.03019.20
5.4.190.0030.07318.94
5.4.180.0030.05318.91
5.4.170.0070.03719.14
5.4.160.0000.04019.12
5.4.150.0070.03318.84
5.4.140.0070.07016.46
5.4.130.0070.03316.42
5.4.120.0000.03716.53
5.4.110.0100.03016.40
5.4.100.0070.05016.39
5.4.90.0100.04016.29
5.4.80.0070.06316.50
5.4.70.0030.07316.45
5.4.60.0100.07016.37
5.4.50.0100.06716.48
5.4.40.0070.07016.48
5.4.30.0070.07316.46
5.4.20.0030.07016.24
5.4.10.0030.08016.48
5.4.00.0070.07015.91
5.3.290.0070.03714.70
5.3.280.0100.05014.64
5.3.270.0030.03714.64
5.3.260.0100.03314.58
5.3.250.0070.03714.59
5.3.240.0070.03714.56
5.3.230.0070.03714.73
5.3.220.0030.04314.56
5.3.210.0100.06714.63
5.3.200.0030.04014.68
5.3.190.0070.06014.61
5.3.180.0030.07314.70
5.3.170.0030.08014.59
5.3.160.0100.06714.70
5.3.150.0100.07014.63
5.3.140.0000.07014.54
5.3.130.0100.07714.66
5.3.120.0030.08014.49
5.3.110.0130.07314.53
5.3.100.0200.06314.11
5.3.90.0070.07314.14
5.3.80.0100.06313.95
5.3.70.0130.06314.00
5.3.60.0030.05313.98
5.3.50.0030.08013.93
5.3.40.0070.06714.05
5.3.30.0070.07313.89
5.3.20.0170.06013.70
5.3.10.0070.06313.59
5.3.00.0030.07313.75
5.2.170.0000.03311.01
5.2.160.0030.06711.07
5.2.150.0070.06011.26
5.2.140.0070.06011.14
5.2.130.0070.06011.21
5.2.120.0100.05711.01
5.2.110.0070.04710.99
5.2.100.0030.06010.99
5.2.90.0030.06711.04
5.2.80.0000.07011.19
5.2.70.0100.05311.23
5.2.60.0100.05711.12
5.2.50.0030.06711.01
5.2.40.0070.05311.12
5.2.30.0070.06311.03
5.2.20.0030.03010.91
5.2.10.0030.06310.91
5.2.00.0170.04310.72
5.1.60.0030.04710.11
5.1.50.0070.05310.11
5.1.40.0030.05310.11
5.1.30.0070.05010.46
5.1.20.0000.06710.42
5.1.10.0100.04710.11
5.1.00.0030.05010.11
5.0.50.0070.03310.11
5.0.40.0000.04710.11
5.0.30.0030.06310.11
5.0.20.0000.05010.11
5.0.10.0000.04310.11
5.0.00.0070.05710.11
4.4.90.0000.03710.11
4.4.80.0000.04010.11
4.4.70.0100.03010.11
4.4.60.0070.03010.11
4.4.50.0030.03010.11
4.4.40.0030.05010.11
4.4.30.0000.03710.11
4.4.20.0030.03010.11
4.4.10.0000.03010.11
4.4.00.0000.04010.11
4.3.110.0030.03310.11
4.3.100.0000.03310.11
4.3.90.0030.03310.11
4.3.80.0070.05010.11
4.3.70.0000.03710.11
4.3.60.0030.03310.11
4.3.50.0070.03010.11
4.3.40.0000.05310.11
4.3.30.0070.03010.11
4.3.20.0000.03310.11
4.3.10.0000.02010.11
4.3.00.0070.03010.11

preferences:
41.44 ms | 400 KiB | 5 Q