3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('k', 'o'); unset($arr[0]); unset($arr[1]); var_dump($arr);

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)
8.3.60.0100.00718.31
8.3.50.0080.01121.90
8.3.40.0100.01018.59
8.3.30.0070.01019.02
8.3.20.0050.00220.26
8.3.10.0000.00820.48
8.3.00.0080.00019.38
8.2.180.0070.00716.36
8.2.170.0090.00922.96
8.2.160.0130.00320.22
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00421.91
8.2.110.0040.00422.15
8.2.100.0120.00017.78
8.2.90.0060.00319.22
8.2.80.0080.00017.97
8.2.70.0000.00817.36
8.2.60.0070.00217.55
8.2.50.0030.00618.07
8.2.40.0070.00418.14
8.2.30.0000.00719.18
8.2.20.0000.00717.66
8.2.10.0040.00417.98
8.2.00.0040.00417.53
8.1.280.0100.00725.92
8.1.270.0060.00322.17
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.84
8.1.230.0070.00319.16
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0000.01017.35
8.1.190.0000.00817.10
8.1.180.0000.00718.10
8.1.170.0090.00318.53
8.1.160.0040.00421.94
8.1.150.0000.00718.77
8.1.140.0040.00417.39
8.1.130.0040.00417.69
8.1.120.0030.00517.28
8.1.110.0000.00717.40
8.1.100.0040.00417.41
8.1.90.0030.00417.34
8.1.80.0040.00417.36
8.1.70.0070.00017.29
8.1.60.0030.00517.45
8.1.50.0040.00417.27
8.1.40.0080.00017.47
8.1.30.0090.00017.45
8.1.20.0000.00817.43
8.1.10.0000.00917.41
8.1.00.0050.00317.30
8.0.300.0040.00418.77
8.0.290.0060.00316.75
8.0.280.0070.00018.41
8.0.270.0000.00717.28
8.0.260.0060.00017.16
8.0.250.0050.00316.86
8.0.240.0030.00316.84
8.0.230.0000.00716.92
8.0.220.0000.00716.84
8.0.210.0030.00316.73
8.0.200.0030.00316.89
8.0.190.0070.00016.95
8.0.180.0040.00416.83
8.0.170.0040.00416.85
8.0.160.0040.00416.74
8.0.150.0000.00716.69
8.0.140.0000.00816.67
8.0.130.0050.00013.25
8.0.120.0030.00716.80
8.0.110.0040.00416.73
8.0.100.0000.00816.65
8.0.90.0000.00816.64
8.0.80.0040.01116.81
8.0.70.0000.00816.67
8.0.60.0000.00716.85
8.0.50.0020.00516.70
8.0.30.0130.01216.88
8.0.20.0110.00817.40
8.0.10.0030.00516.73
8.0.00.0070.01116.75
7.4.330.0050.00015.20
7.4.320.0060.00016.50
7.4.300.0000.00616.60
7.4.290.0000.00716.44
7.4.280.0050.00516.61
7.4.270.0030.00316.46
7.4.260.0030.00316.45
7.4.250.0000.00716.55
7.4.240.0030.00416.55
7.4.230.0000.00716.59
7.4.220.0090.00916.64
7.4.210.0120.00316.48
7.4.200.0000.00716.37
7.4.160.0120.00616.43
7.4.150.0180.00317.40
7.4.140.0060.01017.86
7.4.130.0080.00816.47
7.4.120.0100.00816.35
7.4.110.0060.01016.44
7.4.100.0110.00716.41
7.4.90.0110.01116.44
7.4.80.0120.01216.48
7.4.70.0070.01016.59
7.4.60.0170.00316.37
7.4.50.0000.00816.32
7.4.40.0180.00016.46
7.4.30.0080.00916.30
7.4.00.0030.01014.68
7.3.330.0000.00513.07
7.3.320.0000.00513.12
7.3.310.0000.00716.04
7.3.300.0030.00316.16
7.3.290.0110.00416.29
7.3.280.0100.00916.21
7.3.270.0090.00917.40
7.3.260.0070.01016.20
7.3.250.0090.00716.32
7.3.240.0150.00216.23
7.3.230.0110.00616.39
7.3.210.0120.00616.09
7.3.200.0110.00819.39
7.3.190.0150.00716.44
7.3.180.0100.00616.21
7.3.170.0090.00616.27
7.3.160.0060.01016.30
7.3.10.0080.00416.57
7.3.00.0030.00916.62
7.2.330.0090.00916.26
7.2.320.0100.00716.41
7.2.310.0090.01216.61
7.2.300.0060.01616.21
7.2.290.0100.00716.53
7.2.130.0080.00016.85
7.2.120.0070.00716.67
7.2.110.0110.00816.48
7.2.100.0130.00816.45
7.2.90.0100.01016.64
7.2.80.0120.00816.69
7.2.70.0190.00416.94
7.2.60.0140.00616.87
7.2.50.0150.00316.49
7.2.40.0140.00916.62
7.2.30.0140.00516.70
7.2.20.0120.00416.77
7.2.10.0090.01216.72
7.2.00.0100.00717.40
7.1.250.0050.00315.65
7.1.230.0140.00515.86
7.1.220.0160.00015.80
7.1.210.0220.00215.65
7.1.200.0200.00415.86
7.1.190.0210.00315.75
7.1.180.0170.00015.61
7.1.170.0250.00015.42
7.1.160.0220.00315.65
7.1.150.0240.00915.63
7.1.140.0270.00715.60
7.1.130.0210.00815.70
7.1.120.0170.00315.63
7.1.110.0170.00915.87
7.1.100.0140.00816.96
7.1.90.0220.00615.82
7.1.80.0270.00815.89
7.1.70.0100.00416.41
7.1.60.0150.00917.67
7.1.50.0270.01216.18
7.1.40.0390.00915.65
7.1.30.0270.01015.57
7.1.20.0230.00315.60
7.1.10.0250.00015.77
7.1.00.0210.03819.13
7.0.310.0110.00415.31
7.0.300.0180.00715.19
7.0.290.0130.00915.38
7.0.280.0060.01215.27
7.0.270.0160.00615.19
7.0.260.0090.00415.12
7.0.250.0160.00815.08
7.0.240.0090.01415.36
7.0.230.0130.00315.42
7.0.220.0560.00415.38
7.0.210.0230.00015.48
7.0.200.0200.00116.07
7.0.190.0190.00615.40
7.0.180.0220.00315.38
7.0.170.0160.00615.55
7.0.160.0240.00615.39
7.0.150.0240.00315.43
7.0.140.0190.04018.79
7.0.130.0150.00915.58
7.0.120.0390.00615.37
7.0.110.0310.00915.34
7.0.100.0250.00615.46
7.0.90.0220.00315.33
7.0.80.0180.00615.14
7.0.70.0260.00615.57
7.0.60.0160.04317.60
7.0.50.0240.04116.63
7.0.40.0050.02916.86
7.0.30.0330.03516.82
7.0.20.0250.03216.92
7.0.10.0070.03316.92
7.0.00.0130.02016.80
5.6.380.0080.00814.42
5.6.370.0100.00814.42
5.6.360.0120.00514.29
5.6.350.0090.00914.30
5.6.340.0110.00714.19
5.6.330.0130.00414.20
5.6.320.0150.00314.02
5.6.310.0190.00014.38
5.6.300.0040.01514.15
5.6.290.0120.00514.39
5.6.280.0080.04117.68
5.6.270.0150.00414.58
5.6.260.0130.00314.32
5.6.250.0150.00314.00
5.6.240.0140.00314.23
5.6.230.0130.00414.45
5.6.220.0140.00014.22
5.6.210.0130.04117.57
5.6.200.0070.03816.20
5.6.190.0110.05017.55
5.6.180.0280.02717.33
5.6.170.0220.04017.34
5.6.160.0160.04217.41
5.6.150.0030.02616.27
5.6.140.0230.02216.36
5.6.130.0090.03016.17
5.6.120.0060.04417.70
5.6.110.0120.04217.53
5.6.100.0070.03417.64
5.6.90.0110.04417.56
5.6.80.0130.03517.23
5.6.70.0120.00214.10
5.6.60.0090.00614.40
5.6.50.0100.00314.05
5.6.40.0180.00014.07
5.6.30.0090.01013.98
5.6.20.0000.01514.05
5.6.10.0140.00413.96
5.6.00.0100.00414.04
5.5.380.0110.00312.79
5.5.370.0030.01012.79
5.5.360.0040.00812.79
5.5.350.0190.03316.56
5.5.340.0100.02515.32
5.5.330.0140.03716.68
5.5.320.0240.03916.53
5.5.310.0100.02516.54
5.5.300.0080.04015.37
5.5.290.0060.04115.37
5.5.280.0070.04716.88
5.5.270.0050.04616.82
5.5.260.0030.03216.77
5.5.250.0040.03916.79
5.5.240.1160.02316.51
5.5.230.0120.00312.79
5.5.220.0100.00012.79
5.5.210.0070.00312.79
5.5.200.0080.00612.79
5.5.190.0140.00012.79
5.5.180.0110.00012.79
5.5.170.0130.00714.10
5.5.160.0130.00012.79
5.5.150.0070.00312.79
5.5.140.0120.00312.79
5.5.130.0060.00612.79
5.5.120.0080.00312.79
5.5.110.0060.00312.79
5.5.100.0070.00312.79
5.5.90.0080.00412.79
5.5.80.0110.00012.79
5.5.70.0080.00512.79
5.5.60.0060.00312.79
5.5.50.0070.00412.79
5.5.40.0090.00312.79
5.5.30.0120.00012.79
5.5.20.0090.00312.79
5.5.10.0080.00412.79
5.5.00.0080.00312.79
5.4.450.0140.03716.05
5.4.440.0480.04016.12
5.4.430.0370.03016.15
5.4.420.0240.03016.10
5.4.410.0470.03316.13
5.4.400.0580.02515.78
5.4.390.0450.02515.78
5.4.380.0280.03515.65
5.4.370.0320.03315.69
5.4.360.0170.03515.75
5.4.350.0410.03715.76
5.4.340.0190.03415.74
5.4.330.0030.01012.79
5.4.320.0060.02312.62
5.4.310.0080.02112.62
5.4.300.0100.02212.62
5.4.290.0090.02012.62
5.4.280.0060.02712.57
5.4.270.0100.02312.57
5.4.260.0100.02412.57
5.4.250.0050.02312.57
5.4.240.0050.02012.57
5.4.230.0040.02512.56
5.4.220.0030.02412.56
5.4.210.0050.02112.56
5.4.200.0020.02512.56
5.4.190.0080.01912.56
5.4.180.0060.01912.56
5.4.170.0090.01912.57
5.4.160.0060.02112.57
5.4.150.0110.02212.56
5.4.140.0080.02412.40
5.4.130.0080.02112.40
5.4.120.0090.02812.38
5.4.110.0050.02512.38
5.4.100.0060.02012.38
5.4.90.0050.02112.38
5.4.80.0070.02212.38
5.4.70.0080.01712.37
5.4.60.0070.02012.38
5.4.50.0070.02012.38
5.4.40.0050.02112.37
5.4.30.0060.02512.37
5.4.20.0080.01912.37
5.4.10.0090.01912.37
5.4.00.0080.02012.11
5.3.290.0080.02212.79
5.3.280.0070.02012.75
5.3.270.0100.01912.76
5.3.260.0070.02312.75
5.3.250.0050.02012.75
5.3.240.0070.02312.76
5.3.230.0060.02012.75
5.3.220.0020.02312.73
5.3.210.0080.02012.73
5.3.200.0070.02112.73
5.3.190.0070.02112.73
5.3.180.0070.01912.73
5.3.170.0080.02012.73
5.3.160.0050.02212.73
5.3.150.0050.02112.73
5.3.140.0100.01612.72
5.3.130.0080.02212.72
5.3.120.0050.02212.72
5.3.110.0080.02112.72
5.3.100.0070.02112.46
5.3.90.0050.02112.44
5.3.80.0050.02012.43
5.3.70.0060.02012.43
5.3.60.0060.02112.43
5.3.50.0060.02012.39
5.3.40.0070.02212.40
5.3.30.0100.01912.37
5.3.20.0040.02312.25
5.3.10.0070.01912.24
5.3.00.0070.02012.23
5.2.170.0060.01510.98
5.2.160.0050.01610.98
5.2.150.0050.01910.98
5.2.140.0070.01710.98
5.2.130.0070.01710.96
5.2.120.0040.01610.96
5.2.110.0050.01610.97
5.2.100.0050.01710.96
5.2.90.0040.01710.96
5.2.80.0060.01610.96
5.2.70.0080.01710.96
5.2.60.0040.01810.94
5.2.50.0070.01410.92
5.2.40.0030.01810.91
5.2.30.0060.01510.90
5.2.20.0060.01510.89
5.2.10.0050.01810.85
5.2.00.0040.01910.78
5.1.60.0010.01710.42
5.1.50.0050.01510.42
5.1.40.0070.01210.41
5.1.30.0040.01510.59
5.1.20.0040.01810.60
5.1.10.0050.01310.46
5.1.00.0050.01410.46
5.0.50.0050.0109.70
5.0.40.0050.0099.63
5.0.30.0060.0199.54
5.0.20.0060.0119.52
5.0.10.0040.0109.51
5.0.00.0070.0149.51
4.4.90.0010.0108.79
4.4.80.0020.0118.77
4.4.70.0010.0118.77
4.4.60.0020.0108.77
4.4.50.0030.0108.78
4.4.40.0040.0148.75
4.4.30.0020.0138.77
4.4.20.0020.0118.82
4.4.10.0020.0138.82
4.4.00.0050.0128.78
4.3.110.0040.0098.73
4.3.100.0040.0088.73
4.3.90.0020.0098.71
4.3.80.0020.0158.69
4.3.70.0030.0098.71
4.3.60.0040.0088.71
4.3.50.0020.0098.71
4.3.40.0040.0148.66
4.3.30.0050.0078.03
4.3.20.0020.0118.02
4.3.10.0040.0098.00
4.3.00.0050.0129.83

preferences:
43.29 ms | 401 KiB | 5 Q