3v4l.org

run code in 300+ PHP versions simultaneously
<?php function transformQuestionnaire($arr) { $new_arr = array(); foreach ($arr as $array){ $key = reset($array); $val = end($array); if (!in_array($key, array_keys($new_arr))){ //not a double $new_arr[$key] = $val; } else { //Append it to the existing value $new_arr[$key] = $new_arr[$key] . '|' . $val; } } 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)
8.3.60.0100.01016.63
8.3.50.0130.00821.99
8.3.40.0150.00418.67
8.3.30.0070.00719.09
8.3.20.0080.00020.34
8.3.10.0040.00423.52
8.3.00.0030.00519.26
8.2.180.0080.00818.39
8.2.170.0120.00322.96
8.2.160.0100.00320.57
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0090.00022.26
8.2.110.0100.00020.61
8.2.100.0000.01117.78
8.2.90.0000.00820.51
8.2.80.0060.00318.91
8.2.70.0030.00617.63
8.2.60.0080.00017.63
8.2.50.0030.00618.05
8.2.40.0040.00418.22
8.2.30.0040.00419.43
8.2.20.0030.00617.67
8.2.10.0000.00718.04
8.2.00.0050.00517.66
8.1.280.0070.01125.92
8.1.270.0030.00523.93
8.1.260.0040.00426.35
8.1.250.0030.00528.09
8.1.240.0000.00923.76
8.1.230.0090.00322.72
8.1.220.0060.00317.78
8.1.210.0000.00818.77
8.1.200.0000.00817.53
8.1.190.0030.00517.22
8.1.180.0030.00518.10
8.1.170.0050.00517.62
8.1.160.0000.00718.81
8.1.150.0070.00018.70
8.1.140.0040.00417.38
8.1.130.0050.00217.71
8.1.120.0000.00917.51
8.1.110.0040.00417.49
8.1.100.0090.00017.48
8.1.90.0050.00217.50
8.1.80.0000.00717.46
8.1.70.0000.00917.41
8.1.60.0080.00017.50
8.1.50.0000.00817.55
8.1.40.0040.00417.55
8.1.30.0030.00517.61
8.1.20.0030.00617.54
8.1.10.0050.00317.58
8.1.00.0040.00417.53
8.0.300.0030.00618.77
8.0.290.0040.00416.63
8.0.280.0050.00318.38
8.0.270.0000.00717.28
8.0.260.0000.00718.33
8.0.250.0000.00716.96
8.0.240.0030.00316.96
8.0.230.0040.00416.96
8.0.220.0000.00716.88
8.0.210.0000.00716.86
8.0.200.0030.00316.85
8.0.190.0030.00616.96
8.0.180.0080.00016.93
8.0.170.0060.00316.95
8.0.160.0050.00316.95
8.0.150.0000.00716.76
8.0.140.0040.00416.77
8.0.130.0000.00513.37
8.0.120.0000.00816.88
8.0.110.0020.00516.73
8.0.100.0000.00816.97
8.0.90.0000.00716.70
8.0.80.0090.00916.87
8.0.70.0080.00016.80
8.0.60.0040.00416.95
8.0.50.0000.00716.89
8.0.30.0080.01117.05
8.0.20.0110.00717.40
8.0.10.0050.00316.92
8.0.00.0110.00716.71
7.4.330.0020.00215.09
7.4.320.0040.00416.54
7.4.300.0000.00616.50
7.4.290.0000.00716.42
7.4.280.0040.00416.63
7.4.270.0000.00716.52
7.4.260.0000.00716.58
7.4.250.0000.00816.45
7.4.240.0020.00516.50
7.4.230.0070.00016.64
7.4.220.0090.00616.55
7.4.210.0060.00816.60
7.4.200.0070.00016.69
7.4.190.0070.00016.46
7.4.160.0100.00516.52
7.4.150.0110.00717.40
7.4.140.0070.01017.86
7.4.130.0100.00916.53
7.4.120.0100.01016.48
7.4.110.0090.00916.46
7.4.100.0070.01116.45
7.4.90.0150.00316.39
7.4.80.0030.01719.39
7.4.70.0140.00316.53
7.4.60.0130.00316.58
7.4.50.0030.00516.71
7.4.40.0040.01422.77
7.4.30.0040.01616.45
7.4.10.0110.00714.93
7.4.00.0060.01015.10
7.3.330.0000.00513.23
7.3.320.0020.00513.32
7.3.310.0050.00216.47
7.3.300.0030.00316.29
7.3.290.0090.00616.39
7.3.280.0090.00816.36
7.3.270.0170.00017.40
7.3.260.0060.01216.47
7.3.250.0120.00616.49
7.3.240.0030.01316.43
7.3.230.0070.01016.39
7.3.210.0100.01016.64
7.3.200.0060.01419.39
7.3.190.0090.01216.46
7.3.180.0030.01216.45
7.3.170.0060.01016.52
7.3.160.0070.01016.51
7.3.130.0090.00915.06
7.3.120.0060.01014.88
7.3.110.0070.00714.82
7.3.100.0060.00514.79
7.3.90.0050.01014.88
7.3.80.0090.00314.96
7.3.70.0030.01014.90
7.3.60.0070.00714.92
7.3.50.0070.00814.85
7.3.40.0050.01014.85
7.3.30.0050.00714.83
7.3.20.0060.00616.83
7.3.10.0070.00616.55
7.3.00.0070.00416.70
7.2.330.0140.00416.46
7.2.320.0090.00916.71
7.2.310.0110.00716.80
7.2.300.0080.00816.68
7.2.290.0040.01816.73
7.2.260.0030.01314.77
7.2.250.0060.01114.95
7.2.240.0080.01015.16
7.2.230.0050.01215.26
7.2.220.0030.00915.19
7.2.210.0050.00814.77
7.2.200.0040.00815.12
7.2.190.0050.00715.01
7.2.180.0050.00615.06
7.2.170.0040.00915.17
7.2.160.0070.01014.88
7.2.150.0060.00616.73
7.2.140.0090.00317.10
7.2.130.0020.00916.95
7.2.120.0060.00616.94
7.2.110.0020.01316.97
7.2.100.0040.00916.93
7.2.90.0020.01217.00
7.2.80.0080.00816.97
7.2.70.0030.01016.84
7.2.60.0040.00816.90
7.2.50.0030.01016.89
7.2.40.0050.00817.03
7.2.30.0030.00716.88
7.2.20.0060.01016.95
7.2.10.0100.00216.76
7.2.00.0080.00617.82
7.1.330.0000.01415.66
7.1.320.0050.00815.75
7.1.310.0030.00915.92
7.1.300.0080.00515.86
7.1.290.0050.00715.73
7.1.280.0100.00515.87
7.1.270.0020.01115.82
7.1.260.0060.00615.87
7.1.250.0010.00915.91
7.1.240.0050.00515.99
7.1.230.0000.01115.58
7.1.220.0000.01415.86
7.1.210.0000.01315.88
7.1.200.0060.00615.97
7.1.190.0040.00715.89
7.1.180.0140.00015.82
7.1.170.0100.00315.62
7.1.160.0000.01115.73
7.1.150.0070.00715.82
7.1.140.0070.01015.91
7.1.130.0030.00915.90
7.1.120.0000.01315.83
7.1.110.0000.01715.75
7.1.100.0030.00716.94
7.1.90.0090.00615.65
7.1.80.0000.01515.89
7.1.70.0040.00716.50
7.1.60.0040.00616.44
7.1.50.0050.00816.42
7.1.40.0030.00915.97
7.1.30.0030.01015.80
7.1.20.0070.00715.65
7.1.10.0060.00815.63
7.1.00.0030.04419.21
7.0.330.0030.01015.62
7.0.320.0080.00015.41
7.0.310.0040.00715.46
7.0.300.0000.01315.30
7.0.290.0060.00315.30
7.0.280.0080.00815.46
7.0.270.0060.00315.18
7.0.260.0000.01215.30
7.0.250.0000.01115.32
7.0.240.0090.00315.47
7.0.230.0030.01015.54
7.0.220.0060.00615.60
7.0.210.0070.00715.54
7.0.200.0010.01216.02
7.0.190.0060.00615.36
7.0.180.0040.00715.44
7.0.170.0040.00815.50
7.0.160.0070.00715.31
7.0.150.0000.00915.61
7.0.140.0010.04218.79
7.0.130.0030.00615.61
7.0.120.0100.00315.39
7.0.110.0030.01315.27
7.0.100.0070.04517.70
7.0.90.0110.04317.64
7.0.80.0110.03817.62
7.0.70.0100.04317.75
7.0.60.0030.04817.57
7.0.50.0120.03817.99
7.0.40.0050.04916.61
7.0.30.0030.05016.78
7.0.20.0050.04816.77
7.0.10.0050.04516.88
7.0.00.0080.04016.75
5.6.400.0070.00314.66
5.6.390.0030.01114.46
5.6.380.0080.00814.16
5.6.370.0080.00414.58
5.6.360.0060.00314.68
5.6.350.0040.00714.05
5.6.340.0040.01514.27
5.6.330.0110.00014.17
5.6.320.0060.00614.65
5.6.310.0000.01214.63
5.6.300.0000.01214.05
5.6.290.0070.00714.20
5.6.280.0070.03717.69
5.6.270.0090.00914.60
5.6.260.0000.01214.44
5.6.250.0110.04017.62
5.6.240.0020.05217.42
5.6.230.0070.05117.63
5.6.220.0090.04317.49
5.6.210.0080.04417.46
5.6.200.0120.04317.69
5.6.190.0130.04117.63
5.6.180.0070.04517.83
5.6.170.0050.04317.69
5.6.160.0150.03817.70
5.6.150.0100.04217.74
5.6.140.0050.04917.70
5.6.130.0120.04317.78
5.6.120.0030.03117.75
5.6.110.0070.02717.66
5.6.100.0080.02417.71
5.6.90.0050.02817.77
5.6.80.0050.02617.42
5.6.70.0020.02717.33
5.6.60.0050.02417.39
5.6.50.0030.02617.31
5.6.40.0020.02917.54
5.6.30.0030.03617.33
5.6.20.0060.02317.23
5.6.10.0060.02317.36
5.6.00.0140.03317.44
5.5.380.0110.03717.48
5.5.370.0110.03617.50
5.5.360.0080.04517.42
5.5.350.0090.04317.56
5.5.340.0070.04717.73
5.5.330.0080.03717.65
5.5.320.0120.03717.64
5.5.310.0110.03917.54
5.5.300.0060.04117.67
5.5.290.0080.03117.40
5.5.280.0110.02817.62
5.5.270.0050.02817.72
5.5.260.0050.03217.56
5.5.250.0030.02917.58
5.5.240.0030.02917.33
5.5.230.0100.02217.27
5.5.220.0030.03017.27
5.5.210.0020.02717.28
5.5.200.0020.03217.29
5.5.190.0050.04117.38
5.5.180.0030.02517.30
5.5.170.0090.00614.36
5.5.160.0100.02817.32
5.5.150.0070.02217.28
5.5.140.0020.02317.41
5.5.130.0050.01917.22
5.5.120.0080.02017.38
5.5.110.0030.02317.32
5.5.100.0050.02317.18
5.5.90.0030.02517.07
5.5.80.0050.02517.29
5.5.70.0110.02517.07
5.5.60.0020.02717.29
5.5.50.0030.02417.26
5.5.40.0030.02517.18
5.5.30.0030.02517.01
5.5.20.0080.02317.16
5.5.10.0050.02417.26
5.5.00.0020.03617.28
5.4.450.0100.03815.93
5.4.440.0050.02415.93
5.4.430.0060.02415.93
5.4.420.0030.02415.84
5.4.410.0050.02215.78
5.4.400.0000.02515.76
5.4.390.0050.02215.64
5.4.380.0030.02415.77
5.4.370.0030.02215.68
5.4.360.0020.02515.59
5.4.350.0030.03415.74
5.4.340.0000.02515.68
5.4.330.0030.01312.33
5.4.320.0030.02315.68
5.4.310.0030.02115.63
5.4.300.0060.01415.69
5.4.290.0030.02215.69
5.4.280.0030.02215.73
5.4.270.0030.02415.64
5.4.260.0030.02215.63
5.4.250.0050.02215.76
5.4.240.0050.01915.71
5.4.230.0050.03215.79
5.4.220.0070.02015.68
5.4.210.0050.02115.73
5.4.200.0050.02215.71
5.4.190.0030.02615.75
5.4.180.0100.01515.70
5.4.170.0030.02215.59
5.4.160.0020.02315.73
5.4.150.0040.02515.76
5.4.140.0050.02114.39
5.4.130.0050.03214.31
5.4.120.0020.04414.27
5.4.110.0020.03514.40
5.4.100.0090.03314.40
5.4.90.0030.04114.39
5.4.80.0070.04014.35
5.4.70.0070.03814.40
5.4.60.0080.04014.40
5.4.50.0060.03514.33
5.4.40.0020.04414.39
5.4.30.0100.03514.33
5.4.20.0040.04014.41
5.4.10.0080.03814.40
5.4.00.0050.03814.10
5.3.290.0130.01713.54
5.3.280.0050.03513.49
5.3.270.0040.02913.54
5.3.260.0050.02713.48
5.3.250.0050.02213.48
5.3.240.0030.02313.52
5.3.230.0070.04013.53
5.3.220.0030.04113.44
5.3.210.0030.04013.44
5.3.200.0120.03313.44
5.3.190.0070.03813.50
5.3.180.0060.03813.41
5.3.170.0080.03813.44
5.3.160.0030.04413.47
5.3.150.0060.03613.46
5.3.140.0070.04213.41
5.3.130.0030.04213.44
5.3.120.0110.03713.43
5.3.110.0070.04013.47
5.3.100.0090.03213.24
5.3.90.0030.02313.25
5.3.80.0040.02213.21
5.3.70.0070.03513.23
5.3.60.0050.03713.13
5.3.50.0080.03513.11
5.3.40.0070.02913.17
5.3.30.0040.03313.17
5.3.20.0070.03813.01
5.3.10.0030.03913.05
5.3.00.0000.02812.93
5.2.170.0070.06011.26
5.2.160.0100.03011.16
5.2.150.0070.05311.04
5.2.140.0030.06711.05
5.2.130.0070.06011.21
5.2.120.0130.05711.12
5.2.110.0000.03310.99
5.2.100.0130.04711.12
5.2.90.0100.02710.96
5.2.80.0100.05711.20
5.2.70.0070.04010.97
5.2.60.0070.06311.08
5.2.50.0070.07310.94
5.2.40.0030.06010.90
5.2.30.0070.06311.03
5.2.20.0000.06311.03
5.2.10.0000.06310.79
5.2.00.0070.05310.58
5.1.60.0000.06010.07
5.1.50.0070.05310.12
5.1.40.0000.0479.98
5.1.30.0070.05310.40
5.1.20.0100.04310.46
5.1.10.0130.04710.14
5.1.00.0070.04710.16
5.0.50.0100.0238.97
5.0.40.0000.0408.97
5.0.30.0030.0438.97
5.0.20.0030.0338.97
5.0.10.0100.0378.97
5.0.00.0070.0538.97
4.4.90.0030.0378.97
4.4.80.0030.0308.97
4.4.70.0070.0308.97
4.4.60.0000.0338.97
4.4.50.0070.0338.97
4.4.40.0000.0578.97
4.4.30.0030.0338.97
4.4.20.0000.0378.97
4.4.10.0030.0308.97
4.4.00.0100.0438.97
4.3.110.0070.0338.97
4.3.100.0000.0338.97
4.3.90.0030.0278.97
4.3.80.0070.0238.97
4.3.70.0030.0308.97
4.3.60.0000.0278.97
4.3.50.0030.0378.97
4.3.40.0030.0508.97
4.3.30.0000.0278.97
4.3.20.0070.0338.97
4.3.10.0030.0338.97
4.3.00.0000.0378.97

preferences:
49.04 ms | 401 KiB | 5 Q