3v4l.org

run code in 300+ PHP versions simultaneously
<?php function wrap( $arr){ test( $arr); } function test( &$arr){ $refs = array(); // Array of references that we've seen $f = function( &$arr) use( &$refs, &$f) { $refs[] = $arr; foreach( $arr as &$v) { if( in_array( $v, $refs, true)) { print 'ref, '; } else { if( is_array( $v)) { $f( $v); } else { print $v . ', '; } } } }; $f( $arr); } $array = array(1, 2, array(1, 2), array(1, 2)); wrap( $array);

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)
8.3.60.0100.01018.27
8.3.50.0140.00521.20
8.3.40.0120.00318.93
8.3.30.0110.00418.92
8.3.20.0090.00018.70
8.3.10.0090.00021.09
8.3.00.0080.00023.48
8.2.180.0180.00016.75
8.2.170.0090.00622.96
8.2.160.0070.00720.35
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0100.00321.04
8.2.110.0070.00320.46
8.2.100.0040.00817.91
8.2.90.0040.00419.11
8.2.80.0000.00817.97
8.2.70.0040.00417.63
8.2.60.0080.00018.05
8.2.50.0040.00418.07
8.2.40.0000.00818.34
8.2.30.0050.00321.10
8.2.20.0040.00417.69
8.2.10.0040.00417.66
8.2.00.0040.00417.77
8.1.280.0070.00725.92
8.1.270.0080.00023.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00322.52
8.1.230.0000.01221.03
8.1.220.0030.00518.77
8.1.210.0000.00818.97
8.1.200.0030.00617.36
8.1.190.0060.00319.42
8.1.180.0040.00718.10
8.1.170.0030.00518.66
8.1.160.0000.00718.94
8.1.150.0030.00518.56
8.1.140.0050.00217.53
8.1.130.0030.00317.84
8.1.120.0070.00017.50
8.1.110.0030.00517.45
8.1.100.0050.00317.42
8.1.90.0040.00417.37
8.1.80.0000.00717.38
8.1.70.0070.00017.37
8.1.60.0000.00917.55
8.1.50.0000.00917.44
8.1.40.0040.00417.60
8.1.30.0040.00417.55
8.1.20.0060.00317.64
8.1.10.0040.00417.48
8.1.00.0050.00317.54
8.0.300.0040.00420.04
8.0.290.0040.00417.04
8.0.280.0070.00018.45
8.0.270.0060.00317.25
8.0.260.0030.00316.82
8.0.250.0080.00016.99
8.0.240.0030.00516.90
8.0.230.0070.00016.91
8.0.220.0070.00016.89
8.0.210.0040.00416.87
8.0.200.0070.00016.85
8.0.190.0000.00716.86
8.0.180.0070.00016.91
8.0.170.0040.00416.81
8.0.160.0000.00716.94
8.0.150.0000.00716.89
8.0.140.0040.00416.86
8.0.130.0000.00613.27
8.0.120.0070.00016.82
8.0.110.0070.00016.89
8.0.100.0040.00416.93
8.0.90.0040.00416.84
8.0.80.0060.00916.89
8.0.70.0070.00016.86
8.0.60.0040.00416.94
8.0.50.0040.00416.72
8.0.30.0080.01117.32
8.0.20.0070.01217.40
8.0.10.0000.00717.01
8.0.00.0100.00916.75
7.4.330.0000.00614.80
7.4.320.0070.00316.53
7.4.300.0060.00016.52
7.4.290.0030.00316.60
7.4.280.0000.00716.50
7.4.270.0000.00716.65
7.4.260.0030.00313.28
7.4.250.0070.00016.53
7.4.240.0000.00716.42
7.4.230.0040.00416.39
7.4.220.0100.01016.67
7.4.210.0040.01116.54
7.4.200.0000.00716.35
7.4.190.0040.00416.68
7.4.160.0050.01016.55
7.4.150.0070.01117.40
7.4.140.0070.01017.86
7.4.130.0120.00616.54
7.4.120.0100.01016.51
7.4.110.0100.00616.50
7.4.100.0030.01416.62
7.4.90.0080.01616.37
7.4.80.0070.01019.39
7.4.70.0090.00916.43
7.4.60.0070.01516.49
7.4.50.0060.00316.32
7.4.40.0040.01522.77
7.4.30.0040.01316.48
7.4.10.0120.00614.88
7.4.00.0080.01014.74
7.3.330.0000.00513.31
7.3.320.0000.00613.11
7.3.310.0070.00016.31
7.3.300.0070.00016.21
7.3.290.0050.00816.31
7.3.280.0100.00516.31
7.3.270.0100.01017.40
7.3.260.0110.00818.24
7.3.250.0100.00716.41
7.3.240.0140.00816.55
7.3.230.0150.00316.52
7.3.210.0080.00816.38
7.3.200.0110.01119.39
7.3.190.0160.00616.33
7.3.180.0110.00716.37
7.3.170.0080.01216.48
7.3.160.0100.00616.36
7.3.130.0040.00815.12
7.3.120.0050.01014.84
7.3.110.0080.00814.79
7.3.100.0060.00614.91
7.3.90.0080.00614.97
7.3.80.0030.00915.12
7.3.70.0070.00914.95
7.3.60.0090.00714.88
7.3.50.0040.00914.84
7.3.40.0060.00814.87
7.3.30.0070.01014.73
7.3.20.0090.00516.72
7.3.10.0100.00716.81
7.3.00.0070.00716.64
7.2.330.0140.00316.64
7.2.320.0090.00916.59
7.2.310.0090.00916.59
7.2.300.0100.00616.72
7.2.290.0060.00916.26
7.2.260.0060.01314.74
7.2.250.0070.01015.20
7.2.240.0090.00715.23
7.2.230.0100.00815.20
7.2.220.0050.01115.24
7.2.210.0070.00915.17
7.2.200.0070.00815.03
7.2.190.0050.01115.10
7.2.180.0080.00515.00
7.2.170.0050.01015.04
7.2.160.0070.00714.99
7.2.150.0070.00616.71
7.2.140.0070.00717.01
7.2.130.0030.00916.94
7.2.120.0040.01016.84
7.2.110.0050.00916.89
7.2.100.0090.00616.91
7.2.90.0060.01116.75
7.2.80.0050.01116.90
7.2.70.0080.00516.81
7.2.60.0110.00316.89
7.2.50.0060.00816.83
7.2.40.0070.00816.90
7.2.30.0070.00616.89
7.2.20.0070.00516.80
7.2.10.0070.00816.81
7.2.00.0070.00817.43
7.1.330.0060.00615.98
7.1.320.0050.00915.63
7.1.310.0070.00615.80
7.1.300.0050.00815.71
7.1.290.0040.01115.75
7.1.280.0080.00515.73
7.1.270.0030.01115.74
7.1.260.0070.00915.70
7.1.250.0070.00615.73
7.1.240.0080.00615.74
7.1.230.0020.01015.89
7.1.220.0070.00315.78
7.1.210.0050.00815.64
7.1.200.0070.00715.61
7.1.190.0040.01115.83
7.1.180.0030.01115.73
7.1.170.0050.00715.67
7.1.160.0050.00715.67
7.1.150.0080.00315.78
7.1.140.0050.00515.84
7.1.130.0070.00515.64
7.1.120.0050.00915.67
7.1.110.0050.00615.89
7.1.100.0020.01016.50
7.1.90.0050.00915.85
7.1.80.0090.00315.92
7.1.70.0030.00716.34
7.1.60.0090.00716.97
7.1.50.0040.00816.11
7.1.40.0080.00715.82
7.1.30.0050.00515.90
7.1.20.0020.01115.64
7.1.10.0060.00715.73
7.1.00.0040.02117.98
7.0.330.0050.00815.30
7.0.320.0020.01015.35
7.0.310.0050.00815.41
7.0.300.0050.00715.30
7.0.290.0070.00715.27
7.0.280.0050.00815.32
7.0.270.0080.00315.23
7.0.260.0000.01015.51
7.0.250.0080.00215.51
7.0.240.0060.00315.44
7.0.230.0110.00215.37
7.0.220.0070.00515.21
7.0.210.0030.01015.42
7.0.200.0070.00315.92
7.0.190.0050.00515.48
7.0.180.0050.00515.33
7.0.170.0010.00815.46
7.0.160.0070.00415.26
7.0.150.0100.00515.35
7.0.140.0060.02917.66
7.0.130.0070.00615.49
7.0.120.0050.00715.62
7.0.110.0070.00715.47
7.0.100.0050.00815.37
7.0.90.0060.00815.42
7.0.80.0040.01015.27
7.0.70.0060.02617.52
7.0.60.0070.02917.54
7.0.50.0050.03217.78
7.0.40.0050.03615.66
7.0.30.0060.02315.68
7.0.20.0070.03015.72
7.0.10.0030.02715.68
7.0.00.0060.03015.65
5.6.400.0100.00614.36
5.6.390.0070.00714.75
5.6.380.0010.00814.48
5.6.370.0040.00914.51
5.6.360.0070.00714.39
5.6.350.0110.00514.40
5.6.340.0070.00514.37
5.6.330.0040.00814.30
5.6.320.0030.00914.46
5.6.310.0060.00514.52
5.6.300.0050.00714.75
5.6.290.0050.01014.51
5.6.280.0070.02716.63
5.6.270.0050.01214.48
5.6.260.0060.00814.42
5.6.250.0000.01214.73
5.6.240.0050.00914.57
5.6.230.0120.00314.36
5.6.220.0040.03116.53
5.6.210.0080.02916.49
5.6.200.0030.03316.62
5.6.190.0060.03016.57
5.6.180.0070.01916.67
5.6.170.0050.03316.71
5.6.160.0050.03216.77
5.6.150.0070.03116.60
5.6.140.0070.02016.52
5.6.130.0070.03116.71
5.6.120.0090.01816.60
5.6.110.0050.03316.68
5.6.100.0060.03216.56
5.6.90.0070.03516.56
5.6.80.0060.02816.24
5.6.70.0050.02016.39
5.6.60.0050.02816.35
5.6.50.0030.03316.31
5.6.40.0080.02816.25
5.6.30.0030.03316.35
5.6.20.0060.03216.42
5.6.10.0100.02716.39
5.6.00.0030.02516.24
5.5.380.0030.00812.81
5.5.370.0020.01012.78
5.5.360.0030.02915.36
5.5.350.0070.03015.17
5.5.340.0060.02315.45
5.5.330.0050.03315.58
5.5.320.0030.03515.31
5.5.310.0050.03515.38
5.5.300.0040.02715.47
5.5.290.0020.03415.50
5.5.280.0040.03315.52
5.5.270.0060.02215.51
5.5.260.0080.03015.46
5.5.250.0070.02815.32
5.5.240.0040.02015.23
5.5.230.0070.02615.35
5.5.220.0050.03115.31
5.5.210.0060.03015.28
5.5.200.0030.03015.26
5.5.190.0040.02315.24
5.5.180.0020.03115.09
5.5.170.0070.00712.68
5.5.160.0050.01715.21
5.5.150.0030.02715.21
5.5.140.0070.02815.26
5.5.130.0030.02715.34
5.5.120.0070.02815.20
5.5.110.0050.02715.31
5.5.100.0060.03015.11
5.5.90.0020.02415.08
5.5.80.0050.03115.04
5.5.70.0030.03115.24
5.5.60.0040.02615.13
5.5.50.0040.02915.22
5.5.40.0020.02515.14
5.5.30.0060.01315.15
5.5.20.0050.01715.21
5.5.10.0040.01515.13
5.5.00.0060.01814.93
5.4.450.0050.02213.98
5.4.440.0070.02513.78
5.4.430.0020.03113.91
5.4.420.0040.02613.71
5.4.410.0070.02613.87
5.4.400.0030.03013.82
5.4.390.0040.02713.67
5.4.380.0030.02613.78
5.4.370.0040.02413.72
5.4.360.0050.03013.66
5.4.350.0020.03113.70
5.4.340.0080.01713.66
5.4.330.0050.00711.13
5.4.320.0030.02013.80
5.4.310.0040.03213.69
5.4.300.0000.02413.79
5.4.290.0040.02613.51
5.4.280.0030.02913.69
5.4.270.0050.02613.57
5.4.260.0030.02813.58
5.4.250.0080.02913.79
5.4.240.0030.03213.79
5.4.230.0060.03113.42
5.4.220.0030.03313.79
5.4.210.0070.02613.61
5.4.200.0020.02613.70
5.4.190.0090.01313.70
5.4.180.0040.01713.59
5.4.170.0020.01713.79
5.4.160.0010.02113.68
5.4.150.0040.01413.75
5.4.140.0050.01412.92
5.4.130.0040.01512.76
5.4.120.0060.01312.98
5.4.110.0050.01112.84
5.4.100.0040.01312.69
5.4.90.0030.01212.72
5.4.80.0030.01512.93
5.4.70.0030.01312.96
5.4.60.0020.01612.76
5.4.50.0070.02212.86
5.4.40.0050.02712.87
5.4.30.0060.02112.82
5.4.20.0040.02212.88
5.4.10.0030.01512.86
5.4.00.0020.02612.70
5.3.290.0090.02312.00
5.3.280.0050.02211.87
5.3.270.0040.01611.98
5.3.260.0070.01311.96
5.3.250.0030.01512.05
5.3.240.0030.01511.84
5.3.230.0000.01711.98
5.3.220.0030.01611.96
5.3.210.0040.01411.93
5.3.200.0030.01411.94
5.3.190.0010.01611.85
5.3.180.0010.01712.04
5.3.170.0030.01412.00
5.3.160.0030.01411.95
5.3.150.0040.02512.01
5.3.140.0050.01811.78
5.3.130.0030.02412.01
5.3.120.0040.01611.96
5.3.110.0020.02011.96
5.3.100.0050.01611.77
5.3.90.0020.02111.81
5.3.80.0060.01211.63
5.3.70.0060.01111.66
5.3.60.0020.01611.77
5.3.50.0020.01711.72
5.3.40.0020.01911.69
5.3.30.0040.01511.77
5.3.20.0040.01211.61
5.3.10.0030.01411.45
5.3.00.0020.01411.48
5.2.170.0020.02210.33
5.2.160.0050.01310.37
5.2.150.0030.01810.36
5.2.140.0000.01810.21
5.2.130.0040.01710.35
5.2.120.0030.01610.30
5.2.110.0020.01610.30
5.2.100.0020.01810.39
5.2.90.0020.01810.34
5.2.80.0010.01910.21
5.2.70.0000.01510.30
5.2.60.0030.01610.28
5.2.50.0020.01410.31
5.2.40.0020.01310.29
5.2.30.0030.01510.26
5.2.20.0000.01810.21
5.2.10.0030.01210.21
5.2.00.0020.01310.03
5.1.60.0040.0109.96
5.1.50.0030.0109.96
5.1.40.0000.0149.96
5.1.30.0000.01510.01
5.1.20.0020.0139.96
5.1.10.0040.0109.96
5.1.00.0000.0139.96
5.0.50.0020.0109.96
5.0.40.0000.0109.96
5.0.30.0030.0139.96
5.0.20.0040.0079.96
5.0.10.0020.0099.96
5.0.00.0020.0139.96
4.4.90.0000.0109.96
4.4.80.0010.0109.96
4.4.70.0000.0099.96
4.4.60.0040.0059.96
4.4.50.0020.0089.96
4.4.40.0000.0149.96
4.4.30.0000.0089.96
4.4.20.0030.0069.96
4.4.10.0020.0089.96
4.4.00.0000.0139.96
4.3.110.0020.0079.96
4.3.100.0020.0059.96
4.3.90.0020.0079.96
4.3.80.0030.0139.96
4.3.70.0030.0089.96
4.3.60.0020.0099.96
4.3.50.0010.0099.96
4.3.40.0010.0139.96
4.3.30.0020.0079.96
4.3.20.0000.0099.96
4.3.10.0000.0109.96
4.3.00.0000.0129.96

preferences:
41.95 ms | 401 KiB | 5 Q