3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array(0=>1,1=>2); $check = true; unset($arr[0], $check); print_r($arr, $check);

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)
8.3.60.0070.01416.88
8.3.50.0080.01017.42
8.3.40.0120.00318.71
8.3.30.0110.00318.54
8.3.20.0000.00818.91
8.3.10.0030.00620.61
8.3.00.0040.00419.26
8.2.180.0140.00716.63
8.2.170.0140.00022.96
8.2.160.0090.00619.33
8.2.150.0080.00024.18
8.2.140.0100.00024.66
8.2.130.0060.00326.16
8.2.120.0030.00518.96
8.2.110.0030.00621.08
8.2.100.0090.00317.72
8.2.90.0060.00319.48
8.2.80.0040.00419.25
8.2.70.0030.00617.38
8.2.60.0030.00618.03
8.2.50.0000.00818.07
8.2.40.0000.00718.13
8.2.30.0040.00418.07
8.2.20.0000.00819.52
8.2.10.0040.00417.55
8.2.00.0040.00417.66
8.1.280.0140.00725.92
8.1.270.0040.00424.66
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0150.00022.48
8.1.230.0110.00020.73
8.1.220.0040.00417.74
8.1.210.0080.00018.98
8.1.200.0000.00917.23
8.1.190.0090.00017.40
8.1.180.0030.00618.10
8.1.170.0000.00820.60
8.1.160.0050.00218.83
8.1.150.0050.00218.58
8.1.140.0000.00717.26
8.1.130.0070.00017.80
8.1.120.0000.00717.38
8.1.110.0030.00517.28
8.1.100.0000.00717.30
8.1.90.0030.00317.41
8.1.80.0000.00717.30
8.1.70.0000.00717.35
8.1.60.0000.00817.52
8.1.50.0040.00417.48
8.1.40.0000.00817.50
8.1.30.0020.00517.48
8.1.20.0050.00317.45
8.1.10.0050.00217.47
8.1.00.0030.00617.58
8.0.300.0050.00319.96
8.0.290.0050.00216.63
8.0.280.0030.00318.38
8.0.270.0000.00717.19
8.0.260.0000.00716.72
8.0.250.0000.00716.92
8.0.240.0000.00817.01
8.0.230.0040.00416.95
8.0.220.0000.00716.77
8.0.210.0000.00716.95
8.0.200.0070.00016.91
8.0.190.0070.00016.92
8.0.180.0080.00016.90
8.0.170.0040.00416.72
8.0.160.0000.00716.95
8.0.150.0040.00416.82
8.0.140.0040.00416.78
8.0.130.0030.00313.36
8.0.120.0070.00016.85
8.0.110.0000.00816.85
8.0.100.0050.00216.79
8.0.90.0050.00216.82
8.0.80.0030.01316.88
8.0.70.0080.00016.95
8.0.60.0000.00816.66
8.0.50.0060.00316.84
8.0.30.0100.00717.26
8.0.20.0120.00616.99
8.0.10.0050.00217.02
8.0.00.0140.00716.83
7.4.330.0050.00012.98
7.4.320.0060.00016.56
7.4.300.0080.00016.49
7.4.290.0070.00016.51
7.4.280.0060.00316.44
7.4.270.0030.00316.50
7.4.260.0050.00013.27
7.4.250.0000.00816.52
7.4.240.0030.00316.50
7.4.230.0070.00016.62
7.4.220.0180.00016.50
7.4.210.0090.00616.54
7.4.200.0000.00716.62
7.4.190.0030.00316.75
7.4.160.0060.00916.44
7.4.150.0030.01416.59
7.4.140.0100.01316.39
7.4.130.0090.00916.50
7.4.120.0130.00316.34
7.4.110.0100.01016.76
7.4.100.0140.00316.43
7.4.90.0060.01216.35
7.4.80.0060.00919.39
7.4.70.0060.01116.52
7.4.60.0120.00316.38
7.4.50.0030.00316.38
7.4.40.0040.01416.38
7.4.30.0130.00316.38
7.4.00.0090.00714.93
7.3.330.0060.00313.11
7.3.320.0020.00213.08
7.3.310.0070.00016.13
7.3.300.0030.00316.25
7.3.290.0090.00816.31
7.3.280.0040.01116.28
7.3.270.0030.01316.44
7.3.260.0140.01116.57
7.3.250.0140.00816.22
7.3.240.0070.01416.20
7.3.230.0130.00316.48
7.3.210.0120.00416.51
7.3.200.0100.01016.40
7.3.190.0160.01016.29
7.3.180.0070.01016.46
7.3.170.0040.01916.37
7.3.160.0060.01716.38
7.3.120.0070.00914.77
7.3.110.0130.00614.56
7.3.100.0060.01314.74
7.3.90.0030.01014.50
7.3.80.0090.00614.89
7.3.70.0000.01614.75
7.3.60.0000.01614.89
7.3.50.0100.00614.57
7.3.40.0030.01014.70
7.3.30.0000.01414.59
7.3.20.0070.00616.59
7.3.10.0010.01416.44
7.3.00.0070.00616.55
7.2.330.0110.00716.35
7.2.320.0140.00416.54
7.2.310.0070.01016.57
7.2.300.0070.01516.62
7.2.290.0030.01416.43
7.2.250.0030.01415.12
7.2.240.0100.01014.84
7.2.230.0060.00914.64
7.2.220.0030.01414.84
7.2.210.0060.00914.83
7.2.200.0080.00614.82
7.2.190.0070.00714.73
7.2.180.0000.01614.79
7.2.170.0050.00514.70
7.2.160.0060.00914.89
7.2.150.0100.00716.67
7.2.140.0040.00416.68
7.2.130.0070.00616.57
7.2.120.0070.00816.66
7.2.110.0060.01216.59
7.2.100.0050.00916.76
7.2.90.0020.00916.68
7.2.80.0080.00416.86
7.2.70.0080.00716.68
7.2.60.0070.00916.68
7.2.50.0070.00416.71
7.2.40.0030.00916.75
7.2.30.0080.00816.76
7.2.20.0080.00616.86
7.2.10.0060.00716.79
7.2.00.0060.00817.39
7.1.330.0030.01415.89
7.1.320.0090.00615.74
7.1.310.0030.01015.68
7.1.300.0100.00315.64
7.1.290.0000.01415.70
7.1.280.0040.00715.80
7.1.270.0060.00815.78
7.1.260.0060.00615.63
7.1.250.0050.00915.66
7.1.240.0030.01015.61
7.1.230.0070.00515.79
7.1.220.0070.00915.69
7.1.210.0030.01015.80
7.1.200.0060.00715.79
7.1.190.0040.01015.62
7.1.180.0050.00715.71
7.1.170.0020.01015.71
7.1.160.0020.01215.69
7.1.150.0030.00915.70
7.1.140.0060.00515.74
7.1.130.0040.00915.69
7.1.120.0070.00515.84
7.1.110.0080.00615.85
7.1.100.0030.01016.59
7.1.90.0080.00415.74
7.1.80.0050.00815.65
7.1.70.0020.00915.98
7.1.60.0060.00916.77
7.1.50.0080.01016.11
7.1.40.0040.01015.67
7.1.30.0050.01215.58
7.1.20.0030.01215.84
7.1.10.0060.01015.77
7.1.00.0080.02818.04
7.0.330.0090.00615.10
7.0.320.0060.00615.40
7.0.310.0070.00715.33
7.0.300.0090.00215.25
7.0.290.0000.01315.30
7.0.280.0060.00515.29
7.0.270.0060.00915.26
7.0.260.0100.00215.46
7.0.250.0070.00715.39
7.0.240.0060.00315.40
7.0.230.0020.01015.35
7.0.220.0070.01015.34
7.0.210.0070.00615.15
7.0.200.0030.00715.76
7.0.190.0110.00115.39
7.0.180.0070.00715.39
7.0.170.0050.00915.36
7.0.160.0090.00415.37
7.0.150.0070.00715.30
7.0.140.0060.02917.64
7.0.130.0060.00615.35
7.0.120.0030.02817.60
7.0.110.0060.00615.27
7.0.100.0070.00715.21
7.0.90.0080.00515.26
7.0.80.0050.01015.46
7.0.70.0040.00815.32
7.0.60.0020.03316.90
7.0.50.0100.02816.29
7.0.40.0060.03415.74
7.0.30.0230.02715.77
7.0.20.0110.02315.75
7.0.10.0030.02415.64
7.0.00.0070.03515.78
5.6.400.0070.00714.49
5.6.390.0000.01614.24
5.6.380.0050.00714.35
5.6.370.0030.00714.15
5.6.360.0050.01014.05
5.6.350.0050.00914.36
5.6.340.0020.01414.35
5.6.330.0030.00814.15
5.6.320.0050.00814.18
5.6.310.0070.00614.21
5.6.300.0020.01214.36
5.6.290.0050.00914.19
5.6.280.0040.02916.25
5.6.270.0090.00514.29
5.6.260.0030.00814.16
5.6.250.0050.00714.21
5.6.240.0060.00614.09
5.6.230.0050.00514.17
5.6.220.0050.00614.24
5.6.210.0100.02016.18
5.6.200.0060.01915.47
5.6.190.0030.03316.40
5.6.180.0140.02216.22
5.6.170.0100.02616.45
5.6.160.0060.03416.34
5.6.150.0040.02715.55
5.6.140.0010.02515.66
5.6.130.0030.01915.55
5.6.120.0060.03316.42
5.6.110.0040.01716.40
5.6.100.0040.03316.53
5.6.90.0050.03316.49
5.6.80.0060.03316.35
5.6.70.0040.00614.04
5.6.60.0060.00814.18
5.6.50.0080.00814.06
5.6.40.0040.00914.04
5.6.30.0070.00814.14
5.6.20.0040.00914.12
5.6.10.0050.01014.17
5.6.00.0020.01114.04
5.5.380.0040.00412.54
5.5.370.0030.00712.54
5.5.360.0080.00612.79
5.5.350.0060.02915.18
5.5.340.0080.02914.40
5.5.330.0070.03015.25
5.5.320.0160.02614.94
5.5.310.0130.02715.13
5.5.300.0020.01814.32
5.5.290.0070.03314.48
5.5.280.0050.02115.34
5.5.270.0090.02915.25
5.5.260.0050.03415.43
5.5.250.0050.03415.20
5.5.240.0140.03215.04
5.5.230.0020.00912.52
5.5.220.0070.00412.62
5.5.210.0100.00412.48
5.5.200.0040.00712.61
5.5.190.0060.00512.32
5.5.180.0060.00612.53
5.5.170.0040.00612.47
5.5.160.0070.00312.40
5.5.150.0050.00912.52
5.5.140.0050.00812.38
5.5.130.0060.00512.69
5.5.120.0030.00712.50
5.5.110.0050.00712.79
5.5.100.0070.00712.49
5.5.90.0050.00812.57
5.5.80.0040.00912.46
5.5.70.0070.00512.67
5.5.60.0080.00312.59
5.5.50.0090.00512.57
5.5.40.0020.00912.55
5.5.30.0040.00712.57
5.5.20.0020.00812.52
5.5.10.0080.00212.46
5.5.00.0050.00612.70
5.4.450.0040.02414.78
5.4.440.0040.01614.79
5.4.430.0030.02114.82
5.4.420.0020.01914.60
5.4.410.0060.01914.76
5.4.400.0060.02114.54
5.4.390.0070.02214.59
5.4.380.0080.02614.62
5.4.370.0060.01514.47
5.4.360.0090.02814.60
5.4.350.0050.02614.56
5.4.340.0080.02014.62
5.4.330.0050.00412.32
5.4.320.0070.02814.58
5.4.310.0050.02214.52
5.4.300.0050.03214.56
5.4.290.0080.01914.68
5.4.280.0050.02914.64
5.4.270.0060.02214.65
5.4.260.0040.02114.60
5.4.250.0040.02114.45
5.4.240.0030.02014.58
5.4.230.0010.02214.61
5.4.220.0100.02314.59
5.4.210.0030.02514.58
5.4.200.0060.02414.53
5.4.190.0060.03114.55
5.4.180.0060.02014.61
5.4.170.0020.01914.47
5.4.160.0060.02114.57
5.4.150.0020.02214.62
5.4.140.0060.02613.68
5.4.130.0010.01713.63
5.4.120.0080.02813.71
5.4.110.0020.02213.75
5.4.100.0050.02313.66
5.4.90.0040.01713.58
5.4.80.0050.02313.62
5.4.70.0070.02313.76
5.4.60.0040.02613.69
5.4.50.0070.02613.59
5.4.40.0030.02813.62
5.4.30.0060.02213.75
5.4.20.0040.02713.75
5.4.10.0060.02513.67
5.4.00.0040.01713.58
5.3.290.0080.02013.00
5.3.280.0080.03012.92
5.3.270.0080.01612.95
5.3.260.0060.02312.94
5.3.250.0070.02412.94
5.3.240.0040.01612.80
5.3.230.0040.01712.86
5.3.220.0040.02412.92
5.3.210.0050.02112.99
5.3.200.0040.03012.91
5.3.190.0040.02912.94
5.3.180.0050.02312.98
5.3.170.0050.02012.96
5.3.160.0060.02512.99
5.3.150.0050.03113.00
5.3.140.0030.02112.99
5.3.130.0060.01712.94
5.3.120.0020.02012.96
5.3.110.0030.03112.90
5.3.100.0020.01812.70
5.3.90.0080.02112.70
5.3.80.0030.02112.72
5.3.70.0050.01712.66
5.3.60.0040.01812.71
5.3.50.0030.01712.62
5.3.40.0020.01712.69
5.3.30.0020.02912.58
5.3.20.0050.01412.46
5.3.10.0040.02612.57
5.3.00.0020.02112.49
5.2.170.0030.03310.41
5.2.160.0070.03310.27
5.2.150.0030.03610.38
5.2.140.0030.01810.29
5.2.130.0030.02610.30
5.2.120.0070.03210.24
5.2.110.0080.03110.35
5.2.100.0050.01810.17
5.2.90.0030.02810.31
5.2.80.0050.03010.24
5.2.70.0030.02610.09
5.2.60.0050.03410.05
5.2.50.0000.02610.06
5.2.40.0030.02710.26
5.2.30.0000.03110.08
5.2.20.0050.02710.22
5.2.10.0050.03310.02
5.2.00.0030.0239.96
5.1.60.0030.0279.35
5.1.50.0000.0179.10
5.1.40.0020.0329.26
5.1.30.0050.0279.58
5.1.20.0020.0199.50
5.1.10.0020.0169.43
5.1.00.0050.0169.22
5.0.50.0050.0228.14
5.0.40.0020.0148.08
5.0.30.0080.0317.98
5.0.20.0000.0297.97
5.0.10.0040.0247.95
5.0.00.0030.0327.91
4.4.90.0030.0107.84
4.4.80.0030.0127.84
4.4.70.0020.0187.84
4.4.60.0030.0207.84
4.4.50.0040.0127.84
4.4.40.0000.0157.84
4.4.30.0020.0157.84
4.4.20.0050.0087.84
4.4.10.0030.0177.84
4.4.00.0000.0337.84
4.3.110.0030.0227.84
4.3.100.0000.0197.84
4.3.90.0000.0217.84
4.3.80.0030.0287.84
4.3.70.0020.0137.84
4.3.60.0020.0127.84
4.3.50.0040.0077.84
4.3.40.0020.0157.84
4.3.30.0000.0127.84
4.3.20.0000.0127.84
4.3.10.0020.0107.84
4.3.00.0000.0127.84

preferences:
54.45 ms | 400 KiB | 5 Q