3v4l.org

run code in 300+ PHP versions simultaneously
<?php function transformQuestionnaire($arr) { $new_arr = array(); foreach ($arr as $nr => $array){ if (!in_array($array[0], $new_arr)){ //not a double $new_arr[$array[0]] = $array[1]; } else { //Append it to the existing value $new_arr[$array[0]] = $new_arr[$array[0]] . '|' . $array[1]; } } return $new_arr; } $input = array( 1 => array("one", "potato"), 2 => array("two", "fries"), 3 => array("one", "ketchup"), ); print(var_dump(transformQuestionnaire($input))); ?>

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)
8.3.60.0040.01116.63
8.3.50.0090.00922.10
8.3.40.0120.00318.89
8.3.30.0090.00618.86
8.3.20.0040.00420.16
8.3.10.0000.00823.52
8.3.00.0090.00019.38
8.2.180.0140.00018.16
8.2.170.0150.00022.96
8.2.160.0110.00720.39
8.2.150.0050.00324.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00422.26
8.2.110.0190.00322.14
8.2.100.0070.00417.84
8.2.90.0050.00219.18
8.2.80.0040.00417.97
8.2.70.0060.00317.75
8.2.60.0130.00417.43
8.2.50.0040.00418.07
8.2.40.0000.00818.34
8.2.30.0000.00718.13
8.2.20.0080.00017.76
8.2.10.0000.00718.18
8.2.00.0030.00717.74
8.1.280.0110.00425.92
8.1.270.0040.00423.92
8.1.260.0060.00326.35
8.1.250.0050.00328.09
8.1.240.0030.00623.92
8.1.230.0040.00719.10
8.1.220.0090.00017.79
8.1.210.0030.00618.77
8.1.200.0040.00417.25
8.1.190.0050.00317.53
8.1.180.0130.00018.90
8.1.170.0040.00418.43
8.1.160.0040.00422.09
8.1.150.0000.00818.52
8.1.140.0040.00417.35
8.1.130.0070.00017.87
8.1.120.0030.00617.35
8.1.110.0040.00417.38
8.1.100.0030.00517.41
8.1.90.0000.00717.35
8.1.80.0040.00417.48
8.1.70.0000.00817.43
8.1.60.0000.00817.54
8.1.50.0030.00517.55
8.1.40.0050.00317.41
8.1.30.0020.00517.50
8.1.20.0040.00417.54
8.1.10.0060.00317.57
8.1.00.0070.00017.50
8.0.300.0040.00420.80
8.0.290.0000.00717.16
8.0.280.0000.00718.45
8.0.270.0000.00716.84
8.0.260.0030.00317.27
8.0.250.0000.00717.00
8.0.240.0000.00716.95
8.0.230.0020.00516.92
8.0.220.0070.00016.85
8.0.210.0030.00316.85
8.0.200.0030.00316.82
8.0.190.0040.00416.82
8.0.180.0030.00316.82
8.0.170.0000.00816.84
8.0.160.0070.00016.77
8.0.150.0000.00716.72
8.0.140.0000.00816.86
8.0.130.0050.00013.34
8.0.120.0000.00716.86
8.0.110.0000.00816.80
8.0.100.0030.00516.70
8.0.90.0040.00416.94
8.0.80.0090.00616.84
8.0.70.0000.00716.98
8.0.60.0080.00016.90
8.0.50.0050.00316.69
8.0.30.0100.00817.20
8.0.20.0110.00817.40
8.0.10.0050.00217.00
8.0.00.0090.00916.72
7.4.330.0000.00515.15
7.4.320.0000.00616.41
7.4.300.0060.00016.60
7.4.290.0080.00016.61
7.4.280.0080.00016.64
7.4.270.0000.00716.53
7.4.260.0000.00716.48
7.4.250.0040.00416.61
7.4.240.0030.00516.47
7.4.230.0040.00416.41
7.4.220.0080.00816.53
7.4.210.0060.01016.63
7.4.200.0000.00716.32
7.4.190.0000.00716.38
7.4.160.0030.01216.50
7.4.150.0070.01117.40
7.4.140.0090.00817.86
7.4.130.0120.00516.43
7.4.120.0050.01116.50
7.4.110.0150.00916.44
7.4.100.0100.00716.57
7.4.90.0090.00916.55
7.4.80.0070.01319.39
7.4.70.0060.01116.50
7.4.60.0110.00716.58
7.4.50.0030.00516.39
7.4.40.0070.01122.77
7.4.30.0060.01316.21
7.4.00.0040.01415.08
7.3.330.0020.00213.30
7.3.320.0030.00313.30
7.3.310.0050.00316.36
7.3.300.0000.00716.39
7.3.290.0130.00616.34
7.3.280.0060.01016.34
7.3.270.0170.00017.40
7.3.260.0100.01316.69
7.3.250.0090.00816.39
7.3.240.0120.00516.38
7.3.230.0030.01316.52
7.3.210.0060.01216.39
7.3.200.0100.01319.39
7.3.190.0160.00616.33
7.3.180.0100.00616.52
7.3.170.0080.00816.37
7.3.160.0130.00316.55
7.3.120.0080.00614.95
7.3.10.0150.00516.55
7.3.00.0110.00916.39
7.2.330.0090.01216.68
7.2.320.0120.01516.71
7.2.310.0000.01616.50
7.2.300.0100.00616.48
7.2.290.0110.00516.51
7.2.130.0130.00716.80
7.2.120.0030.01416.41
7.2.110.0110.00616.58
7.2.100.0090.00716.58
7.2.90.0080.00616.47
7.2.80.0080.00816.71
7.2.70.0090.00716.59
7.2.60.0160.00816.78
7.2.50.0100.00716.70
7.2.40.0090.01016.90
7.2.30.0190.00916.73
7.2.20.0150.00816.76
7.2.10.0110.00616.77
7.2.00.0070.00917.48
7.1.250.0120.00415.41
7.1.240.0060.00615.97
7.1.230.0110.00415.79
7.1.220.0000.01115.68
7.1.210.0000.01615.59
7.1.200.0070.00215.99
7.1.190.0030.01015.90
7.1.180.0100.00315.93
7.1.170.0000.00815.89
7.1.160.0060.00915.63
7.1.150.0070.00715.83
7.1.140.0070.00715.73
7.1.130.0130.00015.73
7.1.120.0040.01115.90
7.1.110.0030.01015.93
7.1.100.0000.00917.10
7.1.90.0060.00915.47
7.1.80.0070.00716.02
7.1.70.0050.01016.39
7.1.60.0050.01317.71
7.1.50.0150.01025.25
7.1.40.0120.00015.99
7.1.30.0070.00715.68
7.1.20.0040.01215.78
7.1.10.0000.00915.78
7.1.00.0020.04518.94
7.0.320.0050.00415.49
7.0.310.0100.00315.28
7.0.300.0090.00615.35
7.0.290.0060.00615.45
7.0.280.0030.00515.39
7.0.270.0060.00315.28
7.0.260.0040.00815.13
7.0.250.0000.00915.53
7.0.240.0000.01115.48
7.0.230.0030.00915.36
7.0.220.0070.00715.34
7.0.210.0000.01315.44
7.0.200.0110.00515.09
7.0.190.0100.00315.64
7.0.180.0090.00615.36
7.0.170.0000.01515.43
7.0.160.0120.00315.36
7.0.150.0080.00315.54
7.0.140.0080.03818.73
7.0.130.0000.01015.34
7.0.120.0040.00415.49
7.0.110.0100.00315.37
7.0.100.0090.00315.37
7.0.90.0060.00315.52
7.0.80.0030.01015.53
7.0.70.0130.00015.32
7.0.60.0070.04017.61
7.0.50.0040.03016.61
7.0.40.0020.03116.95
7.0.30.0150.04416.94
7.0.20.0080.02616.82
7.0.10.0100.04316.86
7.0.00.0070.04016.77
5.6.380.0060.00814.45
5.6.370.0000.00814.58
5.6.360.0000.00814.43
5.6.350.0000.01014.54
5.6.340.0030.01014.16
5.6.330.0060.00914.45
5.6.320.0060.00614.46
5.6.310.0030.00914.31
5.6.300.0070.00414.34
5.6.290.0000.00714.16
5.6.280.0060.03817.64
5.6.270.0090.00314.73
5.6.260.0040.00814.45
5.6.250.0080.00814.23
5.6.240.0000.01514.55
5.6.230.0040.00714.38
5.6.220.0060.00614.33
5.6.210.0080.03717.46
5.6.200.0100.04516.26
5.6.190.0080.04017.65
5.6.180.0130.03017.46
5.6.170.0150.04317.45
5.6.160.0050.02317.48
5.6.150.0070.02916.31
5.6.140.0050.04316.29
5.6.130.0020.02416.17
5.6.120.0050.04617.62
5.6.110.0030.04917.71
5.6.100.0070.02617.81
5.6.90.0080.04517.58
5.6.80.0060.03617.29
5.6.70.1560.01717.49
5.6.60.0060.00614.43
5.6.50.0080.00614.38
5.6.40.0030.00914.06
5.6.30.0000.01214.30
5.6.20.0000.01214.29
5.6.10.0040.00414.47
5.6.00.0090.00314.49
5.5.380.0000.01011.09
5.5.370.0070.00311.39
5.5.360.0000.00611.25
5.5.350.0130.04315.93
5.5.340.0050.02214.67
5.5.330.0070.04015.76
5.5.320.0150.02215.75
5.5.310.0210.04115.70
5.5.300.0090.04014.68
5.5.290.0110.01714.55
5.5.280.0070.02316.00
5.5.270.0080.04215.98
5.5.260.0050.03916.09
5.5.250.0030.04515.85
5.5.240.0130.04815.60
5.5.230.0000.00811.25
5.5.220.0000.01011.22
5.5.210.0050.00511.12
5.5.200.0090.00311.04
5.5.190.0000.01011.40
5.5.180.0000.01210.82
5.5.170.0070.00714.30
5.5.160.0060.00311.11
5.5.150.0060.00611.30
5.5.140.0090.00311.30
5.5.130.0000.00711.51
5.5.120.0030.00611.13
5.5.110.0030.00611.04
5.5.100.0030.00811.35
5.5.90.0020.00511.37
5.5.80.0070.00411.02
5.5.70.0030.00610.96
5.5.60.0040.00411.32
5.5.50.0040.00711.07
5.5.40.0040.00711.04
5.5.30.0060.00311.04
5.5.20.0000.01111.10
5.5.10.0000.01111.23
5.5.00.0080.00010.90
5.4.450.0510.03015.23
5.4.440.0370.02715.30
5.4.430.0580.02715.42
5.4.420.0130.02715.02
5.4.410.0520.03014.97
5.4.400.0440.03615.20
5.4.390.0330.03415.18
5.4.380.0240.02715.06
5.4.370.0200.02714.70
5.4.360.0200.02414.95
5.4.350.0180.02814.96
5.4.340.0150.03014.82
5.4.330.0100.00310.98
5.4.320.0050.02311.74
5.4.310.0060.02811.89
5.4.300.0090.02011.72
5.4.290.0110.02011.77
5.4.280.0070.02111.83
5.4.270.0080.02311.64
5.4.260.0100.02511.89
5.4.250.0080.02311.74
5.4.240.0080.02011.63
5.4.230.0090.02211.70
5.4.220.0040.02411.73
5.4.210.0090.01911.60
5.4.200.0040.03211.69
5.4.190.0120.01711.76
5.4.180.0090.02111.68
5.4.170.0100.02011.66
5.4.160.0110.02411.79
5.4.150.0060.02511.75
5.4.140.0080.02311.51
5.4.130.0060.02111.46
5.4.120.0080.02811.45
5.4.110.0080.02011.65
5.4.100.0060.02311.75
5.4.90.0100.02611.45
5.4.80.0090.02311.57
5.4.70.0100.01611.57
5.4.60.0090.02011.62
5.4.50.0100.01811.67
5.4.40.0080.01811.63
5.4.30.0100.01911.41
5.4.20.0050.02311.61
5.4.10.0100.02011.41
5.4.00.0090.02711.34
5.3.290.0060.02311.63
5.3.280.0080.02611.51
5.3.270.0080.03011.70
5.3.260.0100.03211.71
5.3.250.0090.03011.69
5.3.240.0110.02811.66
5.3.230.0130.02511.54
5.3.220.0110.02211.61
5.3.210.0080.02611.55
5.3.200.0070.02411.64
5.3.190.0120.03911.71
5.3.180.0090.02511.61
5.3.170.0090.02111.71
5.3.160.0150.04011.70
5.3.150.0090.02911.68
5.3.140.0080.03011.64
5.3.130.0060.03211.69
5.3.120.0130.02511.67
5.3.110.0100.02211.51
5.3.100.0150.03211.41
5.3.90.0060.02911.38
5.3.80.0090.03511.29
5.3.70.0110.02611.38
5.3.60.0100.02411.30
5.3.50.0130.02311.29
5.3.40.0100.02511.30
5.3.30.0090.02911.19
5.3.20.0050.02511.15
5.3.10.0060.02211.11
5.3.00.0090.02111.04
5.2.170.0110.0169.76
5.2.160.0070.0199.76
5.2.150.0080.0209.76
5.2.140.0080.0239.76
5.2.130.0060.0189.74
5.2.120.0080.0229.74
5.2.110.0080.0229.74
5.2.100.0070.0239.74
5.2.90.0060.0239.74
5.2.80.0040.0209.74
5.2.70.0020.0269.74
5.2.60.0080.0269.72
5.2.50.0080.0229.70
5.2.40.0070.0219.69
5.2.30.0080.0249.68
5.2.20.0090.0149.67
5.2.10.0050.0189.62
5.2.00.0060.0169.56
5.1.60.0050.0139.20
5.1.50.0030.0149.20
5.1.40.0060.0139.19
5.1.30.0070.0159.36
5.1.20.0080.0139.37
5.1.10.0050.0179.24
5.1.00.0060.0149.24
5.0.50.0040.0158.47
5.0.40.0090.0128.40
5.0.30.0020.0228.31
5.0.20.0060.0198.29
5.0.10.0080.0198.29
5.0.00.0080.0218.28
4.4.90.0040.0167.54
4.4.80.0050.0147.53
4.4.70.0030.0127.53
4.4.60.0020.0147.53
4.4.50.0060.0137.54
4.4.40.0040.0167.51
4.4.30.0030.0137.53
4.4.20.0040.0107.58
4.4.10.0020.0107.58
4.4.00.0040.0147.53
4.3.110.0030.0117.49
4.3.100.0020.0127.49
4.3.90.0030.0107.47
4.3.80.0060.0177.45
4.3.70.0030.0107.47
4.3.60.0030.0107.47
4.3.50.0020.0107.47
4.3.40.0040.0137.42
4.3.30.0020.0116.81
4.3.20.0010.0126.80
4.3.10.0040.0106.78
4.3.00.0130.00910.31

preferences:
45.89 ms | 401 KiB | 5 Q