3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'foo'; $array = [&$a]; var_dump($array); //$newArray = array_map(function(&$item){ return $item; }, $array); foreach ($array as $item) { $newArray[] = &$item; } var_dump($newArray);

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)
8.3.40.0100.01018.85
8.3.30.0090.00619.08
8.3.20.0080.00020.30
8.3.10.0080.00021.95
8.3.00.0070.00322.39
8.2.170.0120.00622.96
8.2.160.0140.00720.43
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0070.01126.16
8.2.120.0060.00319.77
8.2.110.0040.00422.11
8.2.100.0120.00019.40
8.2.90.0000.00719.20
8.2.80.0040.00417.97
8.2.70.0030.00617.62
8.2.60.0030.00518.05
8.2.50.0060.00318.07
8.2.40.0030.00718.22
8.2.30.0000.00718.12
8.2.20.0040.00417.62
8.2.10.0090.00017.61
8.2.00.0040.00417.84
8.1.270.0040.00420.41
8.1.260.0030.00626.35
8.1.250.0040.00428.09
8.1.240.0030.00623.84
8.1.230.0070.00419.19
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0030.00517.40
8.1.180.0000.00818.57
8.1.170.0000.00918.72
8.1.160.0000.00722.13
8.1.150.0030.00618.57
8.1.140.0000.00717.44
8.1.130.0070.00017.74
8.1.120.0000.00717.35
8.1.110.0030.00617.32
8.1.100.0050.00317.27
8.1.90.0080.00017.45
8.1.80.0000.00717.48
8.1.70.0040.00417.40
8.1.60.0040.00417.60
8.1.50.0040.00417.55
8.1.40.0030.00617.41
8.1.30.0040.00417.45
8.1.20.0040.00417.59
8.1.10.0000.00717.42
8.1.00.0030.00617.49
8.0.300.0070.00018.77
8.0.290.0070.00017.04
8.0.280.0030.00318.36
8.0.270.0000.00716.68
8.0.260.0030.00316.81
8.0.250.0070.00016.98
8.0.240.0030.00516.94
8.0.230.0030.00516.83
8.0.220.0000.00716.89
8.0.210.0000.00816.88
8.0.200.0030.00516.86
8.0.190.0000.00916.91
8.0.180.0070.00416.78
8.0.170.0030.00516.91
8.0.160.0030.00316.89
8.0.150.0040.00416.91
8.0.140.0000.00716.85
8.0.130.0000.00613.27
8.0.120.0070.00016.80
8.0.110.0000.00716.82
8.0.100.0070.00016.77
8.0.90.0030.00516.90
8.0.80.0060.01016.91
8.0.70.0000.00716.95
8.0.60.0000.00716.93
8.0.50.0000.00716.75
8.0.30.0070.01217.03
8.0.20.0080.01017.40
8.0.10.0070.00017.00
8.0.00.0080.01116.85
7.4.330.0000.00615.00
7.4.320.0030.00316.40
7.4.300.0030.00316.61
7.4.290.0000.00716.60
7.4.280.0030.00316.57
7.4.270.0000.00616.43
7.4.260.0080.00316.57
7.4.250.0030.00416.48
7.4.240.0000.00716.42
7.4.230.0030.00316.42
7.4.220.0030.02316.39
7.4.210.0070.00916.57
7.4.200.0040.00416.62
7.4.190.0070.00016.44
7.4.160.0120.00416.34
7.4.150.0120.00617.40
7.4.140.0110.00817.86
7.4.130.0080.01016.48
7.4.120.0120.00616.48
7.4.110.0030.01316.29
7.4.100.0130.01016.54
7.4.90.0170.00016.45
7.4.80.0050.01119.39
7.4.70.0100.00716.21
7.4.60.0090.01316.59
7.4.50.0000.00616.55
7.4.40.0060.01022.77
7.4.30.0100.00716.41
7.4.00.0040.01314.89
7.3.330.0000.00513.21
7.3.320.0050.00013.13
7.3.310.0020.00516.46
7.3.300.0000.00716.16
7.3.290.0190.00016.30
7.3.280.0080.00816.36
7.3.270.0100.00717.40
7.3.260.0180.00616.29
7.3.250.0080.00916.48
7.3.240.0150.00316.42
7.3.230.0160.00816.47
7.3.210.0030.01416.26
7.3.200.0150.00919.39
7.3.190.0030.01416.64
7.3.180.0030.01316.36
7.3.170.0130.00316.27
7.3.160.0060.00916.41
7.3.120.0080.00914.95
7.3.110.0070.01114.80
7.3.100.0060.00914.62
7.3.90.0070.00714.72
7.3.80.0000.01214.68
7.3.70.0090.00614.98
7.3.60.0130.00314.56
7.3.50.0030.01014.97
7.3.40.0090.00314.67
7.3.30.0050.00314.57
7.3.20.0140.00316.38
7.3.10.0040.00916.65
7.3.00.0030.01216.63
7.2.330.0060.01216.70
7.2.320.0150.00316.68
7.2.310.0130.00316.66
7.2.300.0100.00716.79
7.2.290.0060.00916.88
7.2.250.0060.01314.95
7.2.240.0110.00714.95
7.2.230.0030.01015.10
7.2.220.0060.00814.95
7.2.210.0040.01014.98
7.2.200.0070.00714.73
7.2.190.0050.00514.96
7.2.180.0060.00615.07
7.2.170.0120.00015.07
7.2.160.0060.00914.92
7.2.150.0000.01516.86
7.2.140.0090.00617.03
7.2.130.0040.01016.96
7.2.120.0020.01216.82
7.2.110.0110.00616.84
7.2.100.0070.00816.91
7.2.90.0050.00616.97
7.2.80.0060.00716.81
7.2.70.0060.00916.76
7.2.60.0030.01016.85
7.2.50.0040.00516.77
7.2.40.0040.00916.78
7.2.30.0070.00716.75
7.2.20.0090.00316.84
7.2.10.0020.00916.85
7.2.00.0040.00917.65
7.1.330.0070.01015.72
7.1.320.0030.01015.76
7.1.310.0000.01415.88
7.1.300.0000.01015.96
7.1.290.0040.00415.86
7.1.280.0000.00815.98
7.1.270.0040.01415.99
7.1.260.0090.00615.70
7.1.250.0060.00815.77
7.1.240.0030.01015.79
7.1.230.0060.00615.93
7.1.220.0040.00815.48
7.1.210.0090.00615.88
7.1.200.0060.00615.80
7.1.190.0090.00015.74
7.1.180.0030.01015.83
7.1.170.0040.00815.80
7.1.160.0030.00615.66
7.1.150.0040.00415.68
7.1.140.0060.00615.72
7.1.130.0050.00315.91
7.1.120.0090.00315.78
7.1.110.0060.00816.05
7.1.100.0040.00816.94
7.1.90.0060.00615.63
7.1.80.0050.00316.01
7.1.70.0000.01116.25
7.1.60.0070.01217.78
7.1.50.0060.00916.36
7.1.40.0030.01015.78
7.1.30.0000.01215.56
7.1.20.0040.00715.83
7.1.10.0060.00315.51
7.1.00.0030.02319.12
7.0.330.0030.01715.12
7.0.320.0060.00615.39
7.0.310.0000.01015.23
7.0.300.0000.01015.64
7.0.290.0090.00615.28
7.0.280.0060.00915.30
7.0.270.0040.01115.42
7.0.260.0070.01015.16
7.0.250.0030.01215.50
7.0.240.0000.01015.29
7.0.230.0060.00915.33
7.0.220.0000.01215.49
7.0.210.0060.00615.45
7.0.200.0040.00516.13
7.0.190.0060.00615.38
7.0.180.0040.00415.51
7.0.170.0080.00415.64
7.0.160.0030.01015.54
7.0.150.0060.00615.48
7.0.140.0040.04218.57
7.0.130.0030.01015.58
7.0.120.0070.00715.18
7.0.110.0070.00415.55
7.0.100.0000.01215.60
7.0.90.0030.00915.53
7.0.80.0060.00915.43
7.0.70.0040.00815.40
7.0.60.0020.04817.80
7.0.50.0050.02416.73
7.0.40.0070.03816.82
7.0.30.0170.03516.77
7.0.20.0160.02016.79
7.0.10.0100.02616.67
7.0.00.0080.02316.86
5.6.400.0110.00414.68
5.6.390.0070.00713.96
5.6.380.0000.01114.36
5.6.370.0030.00614.00
5.6.360.0000.00914.36
5.6.350.0030.01014.21
5.6.340.0060.01014.62
5.6.330.0030.01014.25
5.6.320.0040.00414.57
5.6.310.0060.00314.30
5.6.300.0040.01114.34
5.6.290.0070.01014.29
5.6.280.0030.04117.82
5.6.270.0100.00314.57
5.6.260.0070.00714.44
5.6.250.0030.01014.34
5.6.240.0040.01214.16
5.6.230.0080.00414.20
5.6.220.0070.00714.33
5.6.210.0070.02317.62
5.6.200.0030.03516.22
5.6.190.0030.02817.48
5.6.180.1940.02717.59
5.6.170.0180.03717.46
5.6.160.0070.04717.43
5.6.150.0050.02516.12
5.6.140.0050.02716.26
5.6.130.0050.04216.35
5.6.120.0020.03717.81
5.6.110.0100.03817.71
5.6.100.0110.03717.67
5.6.90.0070.03517.62
5.6.80.0100.03517.30
5.6.70.0220.03517.35
5.6.60.0060.00614.28
5.6.50.0050.00313.95
5.6.40.0030.01214.57
5.6.30.0030.01014.38
5.6.20.0000.01914.24
5.6.10.0030.00614.14
5.6.00.0060.00614.35
5.5.380.0070.00714.46
5.5.370.0060.00614.15
5.5.360.0060.00613.88
5.5.350.0130.03117.31
5.5.340.0000.03216.22
5.5.330.0050.04517.34
5.5.320.0230.03717.23
5.5.310.0200.03717.31
5.5.300.0030.04116.07
5.5.290.0070.03816.09
5.5.280.0070.04517.49
5.5.270.0070.02817.36
5.5.260.0050.02817.40
5.5.250.0030.02617.39
5.5.240.0050.02317.17
5.5.230.0030.00614.25
5.5.220.0060.00614.25
5.5.210.0060.00613.94
5.5.200.0060.00614.00
5.5.190.0000.01214.22
5.5.180.0040.01114.26
5.5.170.0040.00414.07
5.5.160.0070.00714.28
5.5.150.0070.01014.38
5.5.140.0030.01413.87
5.5.130.0080.00413.90
5.5.120.0070.00714.19
5.5.110.0030.01314.25
5.5.100.0000.01414.07
5.5.90.0110.00314.12
5.5.80.0080.00614.07
5.5.70.0000.01513.80
5.5.60.0030.00614.05
5.5.50.0060.00614.34
5.5.40.0090.00614.11
5.5.30.0000.01313.71
5.5.20.0030.01014.11
5.5.10.0060.00614.05
5.5.00.0050.00514.04
5.4.450.0030.03715.98
5.4.440.0430.03516.24
5.4.430.0420.03016.14
5.4.420.0450.02716.21
5.4.410.0050.03515.92
5.4.400.0150.02815.72
5.4.390.0270.03015.65
5.4.380.0110.03315.76
5.4.370.0100.02715.74
5.4.360.0050.03615.72
5.4.350.0100.01812.41
5.4.340.0070.02012.40
5.4.330.0030.00612.84
5.4.320.0070.02112.65
5.4.310.0080.02812.64
5.4.300.0070.01812.65
5.4.290.0030.02112.64
5.4.280.0050.02712.59
5.4.270.0040.02412.59
5.4.260.0060.02012.59
5.4.250.0050.03015.79
5.4.240.0080.02715.75
5.4.230.0080.02715.79
5.4.220.0120.02215.85
5.4.210.0030.03215.89
5.4.200.0060.02715.78
5.4.190.0080.02815.86
5.4.180.0050.02815.88
5.4.170.0040.02815.75
5.4.160.0050.03015.73
5.4.150.0060.03815.85
5.4.140.0030.03014.66
5.4.130.0070.02514.54
5.4.120.0070.02814.67
5.4.110.0100.03414.50
5.4.100.0050.02914.58
5.4.90.0060.02514.60
5.4.80.0050.02614.58
5.4.70.0030.03114.56
5.4.60.0050.02614.60
5.4.50.0100.02214.55
5.4.40.0090.02314.61
5.4.30.0020.03214.61
5.4.20.0050.02614.63
5.4.10.0050.02714.62
5.4.00.0040.02914.39
5.3.290.0060.02212.82
5.3.280.0070.02813.66
5.3.270.0100.02313.66
5.3.260.0000.03413.58
5.3.250.0070.02313.66
5.3.240.0050.03013.73
5.3.230.0020.03413.72
5.3.220.0130.02813.63
5.3.210.0050.03013.71
5.3.200.0070.02513.73
5.3.190.0090.02913.63
5.3.180.0050.02713.55
5.3.170.0050.02913.55
5.3.160.0050.02813.71
5.3.150.0080.02513.70
5.3.140.0070.02813.62
5.3.130.0090.02513.72
5.3.120.0070.02813.64
5.3.110.0040.03013.71
5.3.100.0070.02713.45
5.3.90.0050.02913.43
5.3.80.0070.02313.28
5.3.70.0050.03113.36
5.3.60.0080.03313.36
5.3.50.0120.02813.41
5.3.40.0060.02513.28
5.3.30.0060.02613.34
5.3.20.0030.02713.27
5.3.10.0060.02513.09
5.3.00.0070.02313.17
5.2.170.0070.04011.25
5.2.160.0070.05711.23
5.2.150.0100.03711.14
5.2.140.0070.04011.25
5.2.130.0030.04010.86
5.2.120.0070.03711.00
5.2.110.0070.04011.10
5.2.100.0100.03310.86
5.2.90.0070.03711.04
5.2.80.0130.03710.93
5.2.70.0070.04011.11
5.2.60.0070.04011.16
5.2.50.0070.03711.17
5.2.40.0000.04311.01
5.2.30.0030.04310.80
5.2.20.0070.04710.72
5.2.10.0070.04310.92
5.2.00.0030.04010.79
5.1.60.0030.0509.94
5.1.50.0070.03010.14
5.1.40.0000.0379.94
5.1.30.0030.03710.34
5.1.20.0000.04010.51
5.1.10.0000.04710.23
5.1.00.0030.03710.29
5.0.50.0030.0278.61
5.0.40.0030.0278.50
5.0.30.0030.0438.41
5.0.20.0030.0278.38
5.0.10.0000.0308.32
5.0.00.0000.0438.13
4.4.90.0000.0276.92
4.4.80.0100.0176.92
4.4.70.0030.0236.92
4.4.60.0000.0236.92
4.4.50.0000.0236.92
4.4.40.0000.0376.92
4.4.30.0100.0136.92
4.4.20.0030.0206.92
4.4.10.0030.0206.92
4.4.00.0000.0336.89
4.3.110.0000.0306.86
4.3.100.0030.0206.81
4.3.90.0000.0236.75
4.3.80.0000.0336.69
4.3.70.0030.0176.66
4.3.60.0000.0236.64
4.3.50.0000.0236.64
4.3.40.0100.0236.64
4.3.30.0000.0236.44
4.3.20.0000.0236.25
4.3.10.0000.0236.13
4.3.00.0130.0236.93

preferences:
42.65 ms | 400 KiB | 5 Q