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); print_r($b[1]);

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)
8.3.40.0110.00318.68
8.3.30.0110.00419.10
8.3.20.0070.00020.34
8.3.10.0050.00323.65
8.3.00.0000.00819.38
8.2.170.0130.00822.96
8.2.160.0060.00920.32
8.2.150.0050.00224.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0000.00821.09
8.2.110.0050.00522.25
8.2.100.0070.00417.84
8.2.90.0030.00619.22
8.2.80.0000.00817.97
8.2.70.0050.00317.59
8.2.60.0080.00017.93
8.2.50.0040.00418.07
8.2.40.0040.00418.22
8.2.30.0000.00717.98
8.2.20.0050.00317.69
8.2.10.0040.00418.13
8.2.00.0000.00717.77
8.1.270.0080.00023.88
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0060.00323.96
8.1.230.0040.00819.14
8.1.220.0090.00017.74
8.1.210.0000.00818.77
8.1.200.0030.00617.22
8.1.190.0030.00517.23
8.1.180.0030.00518.10
8.1.170.0080.00018.58
8.1.160.0000.00721.95
8.1.150.0030.00518.76
8.1.140.0040.00417.43
8.1.130.0030.00317.79
8.1.120.0000.00717.45
8.1.110.0070.00017.29
8.1.100.0040.00417.45
8.1.90.0000.00817.37
8.1.80.0030.00317.41
8.1.70.0030.00317.39
8.1.60.0080.00017.57
8.1.50.0000.00817.46
8.1.40.0080.00017.42
8.1.30.0000.00817.55
8.1.20.0040.00417.55
8.1.10.0030.00517.46
8.1.00.0000.00717.44
8.0.300.0050.00318.77
8.0.290.0000.00716.63
8.0.280.0030.00318.26
8.0.270.0050.00317.07
8.0.260.0000.00617.19
8.0.250.0030.00316.85
8.0.240.0000.00716.95
8.0.230.0070.00016.84
8.0.220.0050.00216.88
8.0.210.0050.00216.89
8.0.200.0060.00016.95
8.0.190.0040.00716.86
8.0.180.0100.00016.82
8.0.170.0000.00716.82
8.0.160.0000.00716.92
8.0.150.0000.00816.79
8.0.140.0040.00416.86
8.0.130.0000.00813.24
8.0.120.0040.00416.74
8.0.110.0080.00016.83
8.0.100.0000.00816.88
8.0.90.0040.00416.85
8.0.80.0120.00316.83
8.0.70.0040.00416.84
8.0.60.0070.00016.86
8.0.50.0070.00016.77
8.0.30.0070.01417.13
8.0.20.0090.01017.40
8.0.10.0030.00517.00
8.0.00.0130.00616.69
7.4.330.0020.00215.06
7.4.320.0030.00316.49
7.4.300.0070.00016.52
7.4.290.0030.00316.45
7.4.280.0000.00816.42
7.4.270.0030.00316.54
7.4.260.0030.00316.38
7.4.250.0040.00416.40
7.4.240.0060.00216.48
7.4.230.0030.00316.54
7.4.220.0070.01116.47
7.4.210.0180.00316.60
7.4.200.0050.00216.47
7.4.160.0030.01416.50
7.4.150.0110.01417.40
7.4.140.0130.00717.86
7.4.130.0050.01116.38
7.4.120.0120.00716.31
7.4.110.0000.01716.48
7.4.100.0070.01016.35
7.4.90.0030.01316.47
7.4.80.0140.00419.39
7.4.70.0160.00716.40
7.4.60.0100.00716.41
7.4.50.0030.00616.57
7.4.40.0080.00816.58
7.4.30.0070.01416.10
7.4.00.0040.00814.89
7.3.330.0050.00013.17
7.3.320.0020.00213.13
7.3.310.0060.00016.12
7.3.300.0000.00616.09
7.3.290.0090.00616.32
7.3.280.0100.00716.28
7.3.270.0200.00517.40
7.3.260.0130.00316.30
7.3.250.0070.00916.38
7.3.240.0130.00316.45
7.3.230.0100.00616.39
7.3.210.0140.00916.46
7.3.200.0030.01319.39
7.3.190.0070.01116.32
7.3.180.0240.00016.39
7.3.170.0170.00016.47
7.3.160.0030.01216.26
7.2.330.0140.00716.60
7.2.320.0100.00716.49
7.2.310.0120.00316.21
7.2.300.0070.01116.46
7.2.290.0140.00316.41
7.2.00.0000.01119.49
7.1.200.0120.00315.74
7.1.100.0320.00517.52
7.1.70.0070.00317.20
7.1.60.0090.01519.40
7.1.50.0060.01616.89
7.1.00.0000.07722.36
7.0.200.0000.00716.77
7.0.140.0070.07022.08
7.0.60.0000.04320.03
7.0.50.0070.04317.77
7.0.40.0030.05319.96
7.0.30.0300.07720.21
7.0.20.0200.05020.10
7.0.10.0070.08020.16
7.0.00.0100.05720.12
5.6.280.0130.06321.12
5.6.210.0070.07720.61
5.6.200.0230.06718.17
5.6.190.0030.05020.33
5.6.180.0230.04020.60
5.6.170.0330.05020.51
5.6.160.0000.08320.32
5.6.150.0070.08018.09
5.6.140.0000.04018.20
5.6.130.0070.04018.10
5.6.120.0000.08021.00
5.6.110.0130.07720.93
5.6.100.0200.06021.08
5.6.90.0070.07020.95
5.6.80.0100.03320.40
5.5.350.0300.04020.39
5.5.340.0070.06718.02
5.5.330.0000.08020.07
5.5.320.0170.06020.29
5.5.310.0370.05020.24
5.5.300.0070.06317.91
5.5.290.0070.04017.96
5.5.280.0170.03720.84
5.5.270.0130.07720.75
5.5.260.0100.08320.79
5.5.250.0070.05020.68
5.5.240.0030.08020.36
5.4.450.0930.05019.63
5.4.440.0530.06019.52
5.4.430.0730.05719.54
5.4.420.0830.05319.63
5.4.410.0030.05718.72
5.4.400.0300.04718.52
5.4.390.0430.05718.62
5.4.380.0200.05318.61
5.4.370.0100.05318.67
5.4.360.0130.03318.70
5.4.350.0060.04411.98
5.4.340.0040.03611.97
5.4.320.0080.04512.46
5.4.310.0090.04012.45
5.4.300.0090.04912.45
5.4.290.0110.05012.45
5.4.280.0080.03312.35
5.4.270.0030.04012.35
5.4.260.0100.04812.35
5.4.250.0030.04012.35
5.4.240.0050.03612.35
5.4.230.0040.03712.34
5.4.220.0060.03412.34
5.4.210.0060.03312.34
5.4.200.0080.04012.34
5.4.190.0070.04612.34
5.4.180.0070.04012.34
5.4.170.0060.03612.34
5.4.160.0050.03612.34
5.4.150.0060.04312.34
5.4.140.0090.03912.02
5.4.130.0040.04612.01
5.4.120.0040.04911.98
5.4.110.0070.03311.97
5.4.100.0080.03711.97
5.4.90.0070.03411.97
5.4.80.0050.04111.96
5.4.70.0060.03411.96
5.4.60.0040.03611.96
5.4.50.0020.03811.96
5.4.40.0030.04211.95
5.4.30.0050.03511.95
5.4.20.0030.03711.95
5.4.10.0050.04011.95
5.4.00.0050.03611.44
5.3.290.0060.03812.80
5.3.280.0060.03712.71
5.3.270.0050.03912.72
5.3.260.0070.03712.71
5.3.250.0070.03612.72
5.3.240.0090.03312.72
5.3.230.0060.03612.71
5.3.220.0070.03412.68
5.3.210.0090.03412.68
5.3.200.0070.03512.68
5.3.190.0080.03512.67
5.3.180.0060.03612.67
5.3.170.0120.03012.67
5.3.160.0050.04312.68
5.3.150.0060.04812.67
5.3.140.0080.03412.66
5.3.130.0070.03612.66
5.3.120.0060.03712.65
5.3.110.0040.03912.66
5.3.100.0040.03812.12
5.3.90.0060.03512.08
5.3.80.0050.04012.07
5.3.70.0060.04212.07
5.3.60.0080.03412.06
5.3.50.0070.03512.00
5.3.40.0040.03712.00
5.3.30.0050.03511.94
5.3.20.0040.03611.72
5.3.10.0090.03111.69
5.3.00.0040.03811.68
5.2.170.0060.0299.18
5.2.160.0070.0269.18
5.2.150.0040.0319.18
5.2.140.0070.0319.18
5.2.130.0050.0299.13
5.2.120.0040.0299.13
5.2.110.0040.0359.14
5.2.100.0040.0459.14
5.2.90.0090.0359.13
5.2.80.0060.0419.14
5.2.70.0070.0339.13
5.2.60.0030.0309.09
5.2.50.0030.0309.06
5.2.40.0040.0299.04
5.2.30.0090.0339.01
5.2.20.0090.0239.00
5.2.10.0040.0288.92
5.2.00.0020.0318.78
5.1.60.0050.0278.07
5.1.50.0030.0258.06
5.1.40.0020.0268.04
5.1.30.0020.0278.39
5.1.20.0030.0278.41
5.1.10.0030.0268.14
5.1.00.0070.0228.14
5.0.50.0040.0196.62
5.0.40.0030.0196.48
5.0.30.0060.0286.29
5.0.20.0020.0206.26
5.0.10.0040.0186.24
5.0.00.0030.0306.23
4.4.90.0020.0154.78
4.4.80.0030.0144.75
4.4.70.0060.0174.75
4.4.60.0010.0184.75
4.4.50.0020.0154.77
4.4.40.0010.0264.70
4.4.30.0030.0154.76
4.4.20.0030.0154.85
4.4.10.0020.0164.85
4.4.00.0020.0254.76
4.3.110.0050.0134.67
4.3.100.0020.0154.66
4.3.90.0030.0134.63
4.3.80.0020.0244.59
4.3.70.0020.0154.63
4.3.60.0020.0154.63
4.3.50.0020.0154.63
4.3.40.0030.0234.54
4.3.30.0000.0183.29
4.3.20.0010.0173.26
4.3.10.0020.0153.22
4.3.00.0100.0237.14

preferences:
43.83 ms | 400 KiB | 5 Q