3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a= array( 'mela' => 'pera', 'pippo'=> 'pera', 'carlo'=>'banana', 'saverio'=>'pera', 'antonio'=>'banana', ); $b= array_diff_key( $a , array_unique( $a ) ); $i=0; print_r($b); foreach($b as $c => $key){ print_r($c); print_r ('<br/>'); print_r($key); print_r ('<br/>'); }

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)
8.3.60.0150.00716.75
8.3.50.0140.00522.93
8.3.40.0070.00718.32
8.3.30.0100.00318.97
8.3.20.0040.00420.21
8.3.10.0000.00823.41
8.3.00.0040.00419.38
8.2.180.0090.00616.35
8.2.170.0070.00722.96
8.2.160.0070.00720.38
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0060.00926.16
8.2.120.0040.00421.16
8.2.110.0060.00320.52
8.2.100.0050.00518.22
8.2.90.0040.00419.08
8.2.80.0000.00817.97
8.2.70.0030.00617.38
8.2.60.0000.00917.93
8.2.50.0040.00718.07
8.2.40.0040.00418.03
8.2.30.0040.00418.05
8.2.20.0070.00017.73
8.2.10.0040.00418.17
8.2.00.0040.00417.78
8.1.280.0110.00425.92
8.1.270.0030.00523.76
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00624.02
8.1.230.0110.00019.15
8.1.220.0050.00217.74
8.1.210.0060.00318.77
8.1.200.0040.00417.22
8.1.190.0080.00017.13
8.1.180.0040.00418.10
8.1.170.0060.00318.63
8.1.160.0040.00422.00
8.1.150.0000.00718.95
8.1.140.0050.00217.43
8.1.130.0000.00717.81
8.1.120.0000.00717.32
8.1.110.0000.00817.43
8.1.100.0070.00017.50
8.1.90.0000.00717.35
8.1.80.0030.00317.49
8.1.70.0000.00717.31
8.1.60.0040.00417.56
8.1.50.0050.00317.51
8.1.40.0050.00317.54
8.1.30.0030.00517.53
8.1.20.0030.00617.59
8.1.10.0000.00717.35
8.1.00.0040.00417.25
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.35
8.0.270.0000.00717.30
8.0.260.0000.00717.32
8.0.250.0030.00316.98
8.0.240.0060.00016.93
8.0.230.0040.00416.89
8.0.220.0050.00216.87
8.0.210.0030.00316.85
8.0.200.0060.00016.95
8.0.190.0000.00716.93
8.0.180.0110.00016.87
8.0.170.0040.00416.90
8.0.160.0030.00316.84
8.0.150.0050.00316.78
8.0.140.0000.00916.84
8.0.130.0080.00013.24
8.0.120.0000.00816.84
8.0.110.0000.00916.89
8.0.100.0040.00416.93
8.0.90.0000.00816.73
8.0.80.0060.01016.85
8.0.70.0040.00416.94
8.0.60.0040.00416.89
8.0.50.0000.00816.77
8.0.30.0110.00917.16
8.0.20.0120.00717.40
8.0.10.0000.00816.98
8.0.00.0130.00716.64
7.4.330.0000.00515.20
7.4.320.0000.00716.46
7.4.300.0070.00016.48
7.4.290.0040.00416.62
7.4.280.0000.00816.63
7.4.270.0030.00516.41
7.4.260.0030.00316.46
7.4.250.0080.00016.55
7.4.240.0050.00216.51
7.4.230.0040.00416.34
7.4.220.0040.01416.63
7.4.210.0110.00416.51
7.4.200.0000.00816.39
7.4.160.0130.00316.36
7.4.150.0150.00917.40
7.4.140.0050.01217.86
7.4.130.0110.00516.50
7.4.120.0090.01016.51
7.4.110.0040.01216.23
7.4.100.0150.00316.55
7.4.90.0100.00616.52
7.4.80.0040.01319.39
7.4.70.0050.01716.33
7.4.60.0100.00716.39
7.4.50.0030.00516.29
7.4.40.0100.01016.28
7.4.30.0030.01616.60
7.4.00.0120.00314.58
7.3.330.0030.00313.13
7.3.320.0050.00013.09
7.3.310.0070.00016.21
7.3.300.0000.00616.28
7.3.290.0130.00716.22
7.3.280.0080.00516.30
7.3.270.0070.01117.40
7.3.260.0160.00916.53
7.3.250.0060.01116.21
7.3.240.0150.00316.55
7.3.230.0030.01316.39
7.3.210.0170.00516.54
7.3.200.0180.00619.39
7.3.190.0070.01016.30
7.3.180.0060.00916.61
7.3.170.0060.01216.33
7.3.160.0040.01116.44
7.2.330.0110.00716.75
7.2.320.0140.00316.81
7.2.310.0070.01016.65
7.2.300.0070.01416.55
7.2.290.0100.00716.66
7.2.00.0000.01219.50
7.1.100.0130.00317.61
7.1.70.0070.00716.86
7.1.60.0170.00719.40
7.1.50.0110.01416.92
7.1.00.0070.07322.57
7.0.200.0000.01016.84
7.0.140.0030.07721.96
7.0.60.0170.06319.95
7.0.50.0130.05017.88
7.0.40.0070.08720.12
7.0.30.0430.06720.13
7.0.20.0070.05020.09
7.0.10.0030.05320.00
7.0.00.0070.08020.00
5.6.280.0070.06720.92
5.6.210.0130.08320.76
5.6.200.0030.04018.22
5.6.190.0030.08720.64
5.6.180.0270.06320.45
5.6.170.0300.05020.39
5.6.160.0100.08720.61
5.6.150.0030.04018.19
5.6.140.0100.07318.15
5.6.130.0100.06018.18
5.6.120.0030.09020.94
5.6.110.0130.08021.01
5.6.100.0100.08321.02
5.6.90.0030.08720.87
5.6.80.0070.04720.41
5.5.350.0030.05320.32
5.5.340.0030.08317.91
5.5.330.0030.09320.46
5.5.320.0130.08320.34
5.5.310.0270.08320.20
5.5.300.0030.08317.98
5.5.290.0130.07717.91
5.5.280.0000.04720.87
5.5.270.0100.04720.79
5.5.260.0070.07720.88
5.5.250.0000.06020.54
5.5.240.0170.08320.18
5.4.450.0500.03719.10
5.4.440.0200.04019.45
5.4.430.0170.05019.52
5.4.420.0270.04019.13
5.4.410.0270.03019.28
5.4.400.0200.04719.13
5.4.390.0800.04019.13
5.4.380.0030.07018.70
5.4.370.0170.06018.74
5.4.360.0130.06718.52
5.4.350.0170.06318.50
5.4.340.0170.05018.50
5.4.320.0090.03212.46
5.4.310.0060.04512.45
5.4.300.0060.03612.46
5.4.290.0080.03512.45
5.4.280.0050.03612.35
5.4.270.0070.04112.35
5.4.260.0030.04012.35
5.4.250.0060.03712.35
5.4.240.0110.03312.35
5.4.230.0040.03812.34
5.4.220.0080.03712.34
5.4.210.0090.03412.34
5.4.200.0070.03912.34
5.4.190.0040.03612.34
5.4.180.0060.03512.34
5.4.170.0070.03412.35
5.4.160.0060.03512.35
5.4.150.0030.03812.34
5.4.140.0100.03512.02
5.4.130.0070.03712.01
5.4.120.0090.03111.97
5.4.110.0040.03611.97
5.4.100.0040.03711.96
5.4.90.0050.04411.96
5.4.80.0060.04811.97
5.4.70.0060.03711.96
5.4.60.0070.03411.96
5.4.50.0060.03511.96
5.4.40.0050.04111.95
5.4.30.0030.04311.95
5.4.20.0040.03611.95
5.4.10.0070.03411.95
5.4.00.0080.03611.44
5.3.290.0090.03912.80
5.3.280.0070.04412.71
5.3.270.0040.04512.73
5.3.260.0090.03812.72
5.3.250.0110.03112.72
5.3.240.0120.03012.72
5.3.230.0100.03712.71
5.3.220.0050.04012.68
5.3.210.0080.04512.68
5.3.200.0050.04012.68
5.3.190.0080.03612.68
5.3.180.0080.03712.68
5.3.170.0030.03912.67
5.3.160.0030.03912.68
5.3.150.0040.03912.67
5.3.140.0050.03812.66
5.3.130.0060.03812.66
5.3.120.0070.04112.66
5.3.110.0100.04112.66
5.3.100.0050.03812.12
5.3.90.0090.03312.08
5.3.80.0060.03612.07
5.3.70.0070.04012.07
5.3.60.0050.03612.06
5.3.50.0070.04212.00
5.3.40.0090.03712.00
5.3.30.0050.03511.94
5.3.20.0030.03811.72
5.3.10.0080.03211.69
5.3.00.0070.03411.68
5.2.170.0050.0359.18
5.2.160.0030.0329.18
5.2.150.0060.0329.18
5.2.140.0070.0289.17
5.2.130.0050.0299.13
5.2.120.0030.0309.14
5.2.110.0060.0279.14
5.2.100.0060.0279.14
5.2.90.0040.0339.14
5.2.80.0060.0299.14
5.2.70.0080.0299.13
5.2.60.0070.0279.09
5.2.50.0070.0329.06
5.2.40.0050.0279.04
5.2.30.0010.0339.01
5.2.20.0060.0299.00
5.2.10.0040.0278.92
5.2.00.0050.0298.78
5.1.60.0050.0238.06
5.1.50.0010.0308.06
5.1.40.0050.0278.04
5.1.30.0060.0298.39
5.1.20.0010.0308.41
5.1.10.0040.0258.14
5.1.00.0040.0248.14
5.0.50.0050.0216.62
5.0.40.0060.0226.48
5.0.30.0040.0326.29
5.0.20.0050.0246.27
5.0.10.0060.0166.24
5.0.00.0040.0286.23
4.4.90.0010.0204.78
4.4.80.0030.0144.75
4.4.70.0000.0174.76
4.4.60.0000.0174.75
4.4.50.0030.0144.77
4.4.40.0020.0304.71
4.4.30.0020.0154.76
4.4.20.0020.0164.84
4.4.10.0050.0144.85
4.4.00.0030.0314.76
4.3.110.0050.0134.67
4.3.100.0040.0134.66
4.3.90.0010.0154.63
4.3.80.0030.0264.59
4.3.70.0010.0174.63
4.3.60.0020.0154.63
4.3.50.0020.0164.63
4.3.40.0030.0234.54
4.3.30.0010.0163.28
4.3.20.0020.0173.25
4.3.10.0000.0173.22
4.3.00.0170.01316.03

preferences:
41.26 ms | 401 KiB | 5 Q