3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ [ 'a' => 1, 'b' => 2, 'c' => 3], [ 'a' => 4, 'b' => 5, 'c' => 6], [ 'a' => 7, 'b' => 8, 'c' => 9] ]; foreach ($array as &$val) { unset($val['a']); } $array2 = [ [ 'a' => 1, 'b' => 2, 'c' => 3], [ 'a' => 4, 'b' => 5, 'c' => 6], [ 'a' => 7, 'b' => 8, 'c' => 9] ]; $arrayRef = &$array2; unset($arrayRef[0]['a']); unset($arrayRef[0]['a']); foreach ($array as $key => $val) { echo $key . ' => ' . $val['b'] . ', ' . $val['c'] . PHP_EOL; } foreach ($array2 as $key => $val) { echo $key . ' => ' . $val['b'] . ', ' . $val['c'] . PHP_EOL; }

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)
8.3.60.0110.00318.56
8.3.50.0150.00521.20
8.3.40.0120.00618.85
8.3.30.0130.00318.68
8.3.20.0110.00018.64
8.3.10.0040.00421.23
8.3.00.0000.00823.71
8.2.180.0140.00416.88
8.2.170.0090.01222.96
8.2.160.0140.00720.41
8.2.150.0040.00424.18
8.2.140.0050.00524.66
8.2.130.0080.00026.16
8.2.120.0140.00420.94
8.2.110.0030.00620.58
8.2.100.0080.00317.78
8.2.90.0000.00819.35
8.2.80.0000.00719.39
8.2.70.0030.00717.49
8.2.60.0040.00418.04
8.2.50.0060.00318.07
8.2.40.0000.00718.28
8.2.30.0000.00719.46
8.2.20.0050.00217.61
8.2.10.0040.00417.77
8.2.00.0040.00417.76
8.1.280.0150.00425.92
8.1.270.0070.00023.99
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0060.00322.66
8.1.230.0090.00320.91
8.1.220.0050.00318.77
8.1.210.0040.00418.92
8.1.200.0060.00317.35
8.1.190.0080.00017.53
8.1.180.0050.00318.10
8.1.170.0040.00418.51
8.1.160.0040.00418.93
8.1.150.0040.00418.52
8.1.140.0040.00417.37
8.1.130.0030.00317.94
8.1.120.0070.00017.45
8.1.110.0040.00417.50
8.1.100.0000.00717.51
8.1.90.0040.00417.36
8.1.80.0000.00717.30
8.1.70.0030.00317.42
8.1.60.0030.00517.63
8.1.50.0030.00517.38
8.1.40.0040.00417.54
8.1.30.0000.00717.55
8.1.20.0040.00417.56
8.1.10.0040.00417.43
8.1.00.0000.00817.49
8.0.300.0050.00220.03
8.0.290.0000.00717.16
8.0.280.0040.00418.38
8.0.270.0030.00317.27
8.0.260.0030.00316.88
8.0.250.0000.00817.02
8.0.240.0030.00516.96
8.0.230.0030.00316.98
8.0.220.0070.00016.90
8.0.210.0000.00716.80
8.0.200.0070.00017.01
8.0.190.0070.00016.90
8.0.180.0070.00016.94
8.0.170.0040.00416.89
8.0.160.0040.00417.01
8.0.150.0030.00516.81
8.0.140.0000.00816.84
8.0.130.0030.00313.29
8.0.120.0080.00016.75
8.0.110.0000.00816.99
8.0.100.0040.00416.96
8.0.90.0040.00416.86
8.0.80.0040.01116.95
8.0.70.0000.00716.95
8.0.60.0000.00716.79
8.0.50.0030.00316.84
8.0.30.0070.01217.20
8.0.20.0070.01217.40
8.0.10.0040.00416.99
8.0.00.0120.01016.72
7.4.330.0030.00315.01
7.4.320.0070.00016.46
7.4.300.0060.00016.64
7.4.290.0050.00316.66
7.4.280.0030.00716.53
7.4.270.0070.00016.60
7.4.260.0000.00613.36
7.4.250.0000.00716.48
7.4.240.0030.00316.60
7.4.230.0030.00316.66
7.4.220.0110.00716.52
7.4.210.0080.00816.61
7.4.200.0000.00716.68
7.4.190.0030.00316.47
7.4.160.0060.00916.59
7.4.150.0030.01517.40
7.4.140.0070.01117.86
7.4.130.0120.00716.51
7.4.120.0050.01116.56
7.4.110.0090.00916.55
7.4.100.0110.00716.48
7.4.90.0040.01216.44
7.4.80.0180.04219.39
7.4.70.0060.01116.44
7.4.60.0070.01416.36
7.4.50.0000.00816.51
7.4.40.0070.01122.77
7.4.30.0110.01116.61
7.4.10.0060.01314.91
7.4.00.0060.00415.01
7.3.330.0000.00613.19
7.3.320.0000.00613.16
7.3.310.0080.00016.46
7.3.300.0070.00016.40
7.3.290.0000.01416.40
7.3.280.0080.01116.34
7.3.270.0070.01017.40
7.3.260.0120.00518.24
7.3.250.0050.01216.51
7.3.240.0180.00316.42
7.3.230.0040.01416.39
7.3.210.0100.00716.59
7.3.200.0140.00319.39
7.3.190.0130.00416.41
7.3.180.0060.01016.52
7.3.170.0070.01016.31
7.3.160.0080.00816.36
7.3.130.0070.01014.71
7.3.120.0110.00514.78
7.3.110.0070.01315.09
7.3.100.0030.01214.98
7.3.90.0060.00914.66
7.3.80.0040.01115.11
7.3.70.0040.01114.97
7.3.60.0070.00715.03
7.3.50.0040.00814.77
7.3.40.0080.00314.83
7.3.30.0090.00314.79
7.3.20.0000.01716.86
7.3.10.0000.01016.58
7.3.00.0140.00016.79
7.2.330.0120.00616.54
7.2.320.0110.00816.77
7.2.310.0090.00916.51
7.2.300.0100.00616.41
7.2.290.0030.01316.71
7.2.260.0070.01114.84
7.2.250.0080.00815.18
7.2.240.0130.00315.16
7.2.230.0050.00515.06
7.2.220.0000.01214.97
7.2.210.0060.00915.04
7.2.200.0000.01115.29
7.2.190.0060.00915.24
7.2.180.0080.00815.25
7.2.170.0070.00715.12
7.2.160.0040.01515.01
7.2.150.0090.00617.05
7.2.140.0060.00616.84
7.2.130.0000.01616.81
7.2.120.0060.00916.98
7.2.110.0060.00916.89
7.2.100.0030.01317.04
7.2.90.0100.00316.97
7.2.80.0030.01317.03
7.2.70.0070.01016.92
7.2.60.0040.00817.06
7.2.50.0030.01316.85
7.2.40.0060.00916.98
7.2.30.0040.00816.93
7.2.20.0060.00617.00
7.2.10.0030.01316.90
7.2.00.0060.00718.37
7.1.330.0060.00915.91
7.1.320.0080.00415.54
7.1.310.0070.00715.75
7.1.300.0030.00615.91
7.1.290.0030.01015.44
7.1.280.0070.00715.52
7.1.270.0060.01015.84
7.1.260.0100.00315.95
7.1.250.0100.00315.74
7.1.240.0060.00615.68
7.1.230.0090.00315.79
7.1.220.0040.01115.68
7.1.210.0000.01415.83
7.1.200.0040.00715.87
7.1.190.0070.00415.79
7.1.180.0030.01315.95
7.1.170.0000.00915.66
7.1.160.0070.00715.97
7.1.150.0070.00715.80
7.1.140.0030.00715.88
7.1.130.0100.00315.83
7.1.120.0060.00615.74
7.1.110.0000.01415.80
7.1.100.0020.01217.03
7.1.90.0140.00315.72
7.1.80.0070.00715.91
7.1.70.0010.01016.63
7.1.60.0060.00616.41
7.1.50.0090.00616.36
7.1.40.0040.00815.85
7.1.30.0070.00715.53
7.1.20.0030.01215.84
7.1.10.0070.00415.84
7.1.00.0020.03519.08
7.0.330.0070.00315.46
7.0.320.0030.01415.57
7.0.310.0130.00315.46
7.0.300.0070.00415.42
7.0.290.0000.01315.63
7.0.280.0000.01415.55
7.0.270.0000.00915.46
7.0.260.0000.01515.44
7.0.250.0030.00615.48
7.0.240.0030.01315.45
7.0.230.0100.00315.42
7.0.220.0000.01315.29
7.0.210.0000.01115.54
7.0.200.0120.00316.04
7.0.190.0050.00515.34
7.0.180.0070.00415.33
7.0.170.0070.00315.64
7.0.160.0070.00315.38
7.0.150.0040.00815.51
7.0.140.0030.04218.69
7.0.130.0040.00715.37
7.0.120.0070.00715.35
7.0.110.0070.04217.72
7.0.100.0060.02617.60
7.0.90.0090.04017.69
7.0.80.0100.04317.69
7.0.70.0080.04517.73
7.0.60.0030.05017.80
7.0.50.0060.02617.89
7.0.40.0100.04216.78
7.0.30.0090.03816.69
7.0.20.0100.02316.86
7.0.10.0130.03516.82
7.0.00.0030.04716.63
5.6.400.0060.00914.54
5.6.390.0090.00614.51
5.6.380.0000.01314.52
5.6.370.0120.00614.50
5.6.360.0070.00714.65
5.6.350.0070.00714.73
5.6.340.0040.00414.19
5.6.330.0030.00614.57
5.6.320.0090.00614.67
5.6.310.0000.01514.76
5.6.300.0060.00914.57
5.6.290.0000.01414.34
5.6.280.0030.04217.75
5.6.270.0030.01214.08
5.6.260.0110.04117.67
5.6.250.0030.04517.38
5.6.240.0030.05017.56
5.6.230.0080.04617.54
5.6.220.0050.04417.49
5.6.210.0130.04017.39
5.6.200.0080.04217.85
5.6.190.0070.03217.82
5.6.180.0150.03317.87
5.6.170.0100.04017.73
5.6.160.0070.04217.79
5.6.150.0100.04217.68
5.6.140.0060.02117.91
5.6.130.0030.04717.69
5.6.120.0050.04817.84
5.6.110.0130.04017.76
5.6.100.0100.02817.73
5.6.90.0100.03817.78
5.6.80.0090.02217.49
5.6.70.0100.04017.40
5.6.60.0090.04117.51
5.6.50.0120.02417.55
5.6.40.0030.04117.31
5.6.30.0050.04817.21
5.6.20.0030.04117.51
5.6.10.0030.02917.25
5.6.00.0030.04517.51
5.5.380.0100.03817.34
5.5.370.0090.03917.32
5.5.360.0050.03817.46
5.5.350.0020.04217.54
5.5.340.0100.04017.65
5.5.330.0070.04417.52
5.5.320.0030.03817.71
5.5.310.0080.04217.67
5.5.300.0080.04117.78
5.5.290.0100.02517.86
5.5.280.0070.04817.66
5.5.270.0080.03317.60
5.5.260.0080.04617.63
5.5.250.0050.03717.55
5.5.240.0070.04217.35
5.5.230.0030.04717.16
5.5.220.0080.02617.21
5.5.210.0120.04217.28
5.5.200.0030.04617.22
5.5.190.0030.04417.38
5.5.180.0080.04217.25
5.5.170.0070.00714.43
5.5.160.0090.04117.43
5.5.150.0030.04217.33
5.5.140.0150.03817.42
5.5.130.0070.04017.08
5.5.120.0050.02317.34
5.5.110.0050.04217.29
5.5.100.0070.04117.22
5.5.90.0090.02317.06
5.5.80.0080.04117.29
5.5.70.0070.04417.30
5.5.60.0090.03817.20
5.5.50.0020.04917.21
5.5.40.0090.03617.22
5.5.30.0080.04017.20
5.5.20.0020.04516.90
5.5.10.0020.05017.22
5.5.00.0120.03517.18
5.4.450.0050.04215.36
5.4.440.0120.03315.30
5.4.430.0080.04015.30
5.4.420.0080.04315.32
5.4.410.0050.04015.36
5.4.400.0050.04015.29
5.4.390.0070.03615.19
5.4.380.0030.03815.13
5.4.370.0120.03515.13
5.4.360.0080.03715.11
5.4.350.0100.03715.10
5.4.340.0080.03815.11
5.4.330.0000.00911.27
5.4.320.0030.04315.11
5.4.310.0090.03515.14
5.4.300.0090.04315.28
5.4.290.0090.02515.21
5.4.280.0070.03715.14
5.4.270.0060.03515.22
5.4.260.0030.03515.11
5.4.250.0080.04115.15
5.4.240.0070.03815.17
5.4.230.0030.04215.15
5.4.220.0050.03815.15
5.4.210.0020.03715.15
5.4.200.0050.04015.19
5.4.190.0050.04515.22
5.4.180.0070.03715.21
5.4.170.0080.03815.10
5.4.160.0030.04515.19
5.4.150.0060.04315.14
5.4.140.0070.03713.80
5.4.130.0070.04213.88
5.4.120.0050.03713.75
5.4.110.0050.03613.78
5.4.100.0030.02513.82
5.4.90.0030.04213.84
5.4.80.0050.03513.87
5.4.70.0060.04013.77
5.4.60.0080.03513.86
5.4.50.0030.02513.88
5.4.40.0110.03413.75
5.4.30.0100.03713.79
5.4.20.0030.02813.81
5.4.10.0050.03413.81
5.4.00.0030.02213.46
5.3.290.0050.03113.00
5.3.280.0020.04612.94
5.3.270.0080.03812.87
5.3.260.0070.03812.97
5.3.250.0070.03712.88
5.3.240.0030.04312.94
5.3.230.0020.04212.98
5.3.220.0080.03512.96
5.3.210.0070.03312.83
5.3.200.0070.04012.87
5.3.190.0000.03312.97
5.3.180.0020.04512.87
5.3.170.0080.03512.87
5.3.160.0030.02612.86
5.3.150.0030.03912.92
5.3.140.0030.04112.84
5.3.130.0090.03512.88
5.3.120.0080.02312.86
5.3.110.0080.04112.85
5.3.100.0030.02312.63
5.3.90.0050.02212.56
5.3.80.0030.02712.54
5.3.70.0040.02112.66
5.3.60.0030.02312.67
5.3.50.0050.01812.62
5.3.40.0030.02312.59
5.3.30.0050.01812.54
5.3.20.0090.02412.52
5.3.10.0010.02012.36
5.3.00.0050.03412.40
5.2.170.0000.04013.07
5.2.160.0070.02713.07
5.2.150.0100.02713.07
5.2.140.0000.03013.07
5.2.130.0000.03013.07
5.2.120.0070.02313.07
5.2.110.0070.03713.07
5.2.100.0030.02713.07
5.2.90.0030.03013.07
5.2.80.0130.01713.07
5.2.70.0030.03013.07
5.2.60.0030.05013.07
5.2.50.0030.03313.07
5.2.40.0030.04313.07
5.2.30.0030.03013.07
5.2.20.0030.02713.07
5.2.10.0030.03013.07
5.2.00.0000.05013.07
5.1.60.0070.04713.07
5.1.50.0030.02713.07
5.1.40.0030.02313.07
5.1.30.0030.03313.07
5.1.20.0000.03713.07
5.1.10.0000.03313.07
5.1.00.0030.02313.07
5.0.50.0070.03713.07
5.0.40.0030.02013.07
5.0.30.0030.03013.07
5.0.20.0030.01713.07
5.0.10.0000.02013.07
5.0.00.0030.03313.07
4.4.90.0030.03713.07
4.4.80.0030.03013.07
4.4.70.0070.01313.07
4.4.60.0030.01313.07
4.4.50.0030.01713.07
4.4.40.0030.03013.07
4.4.30.0000.02713.07
4.4.20.0030.02313.07
4.4.10.0000.02013.07
4.4.00.0000.02313.07
4.3.110.0030.02013.07
4.3.100.0000.01313.07
4.3.90.0000.01313.07
4.3.80.0070.02013.07
4.3.70.0000.01713.07
4.3.60.0000.01713.07
4.3.50.0030.01713.07
4.3.40.0000.02713.07
4.3.30.0000.01713.07
4.3.20.0030.01313.07
4.3.10.0000.01713.07
4.3.00.0070.01313.07

preferences:
35.69 ms | 400 KiB | 5 Q