3v4l.org

run code in 300+ PHP versions simultaneously
<?php $testArray = array();$testArray["test1"] = null;$test = null;echo "test1: " . isset($testArray["test1"]) . "<br>";echo "test2: " . isset($testArray["test2"]) . "<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)
8.3.60.0110.00416.38
8.3.50.0050.01522.11
8.3.40.0040.01118.71
8.3.30.0130.00722.96
8.3.20.0110.00422.96
8.2.180.0090.00616.38
8.2.170.0100.00322.96
8.2.160.0060.00920.15
8.2.150.0160.00319.27
8.1.280.0180.00425.92
7.4.10.0060.01316.41
7.4.00.0100.00715.79
7.3.130.0040.01516.28
7.3.120.0080.00615.63
7.3.110.0040.01116.48
7.3.100.0080.00616.48
7.3.90.0060.00916.49
7.3.80.0030.01016.05
7.3.70.0100.00016.30
7.3.60.0000.01216.39
7.3.50.0060.00616.04
7.3.40.0040.01916.06
7.3.30.0000.01216.23
7.3.20.0060.00915.96
7.3.10.0160.00816.04
7.3.00.0230.00016.18
7.2.260.0100.01016.64
7.2.250.0100.00616.36
7.2.240.0000.01416.52
7.2.230.0060.00916.49
7.2.220.0090.00316.61
7.2.210.0030.00716.60
7.2.200.0070.00316.42
7.2.190.0060.00916.49
7.2.180.0080.00516.39
7.2.170.0100.01016.39
7.2.160.0070.01016.25
7.2.150.3490.00716.37
7.2.140.0050.01516.26
7.2.130.0120.01216.28
7.2.120.0770.01316.41
7.2.110.0170.00618.28
7.2.100.0060.01818.17
7.2.90.0200.00818.30
7.2.80.0220.00917.95
7.2.70.0050.00512.06
7.2.60.0110.00913.55
7.2.50.0180.00012.06
7.2.40.0150.00012.06
7.2.30.0120.00612.06
7.2.20.0000.01512.06
7.2.10.0120.00612.06
7.2.00.0000.02013.45
7.1.330.0100.00317.43
7.1.320.0030.00717.23
7.1.310.0060.00317.38
7.1.300.0070.01117.18
7.1.290.0030.01115.45
7.1.280.0300.01215.21
7.1.270.0070.01315.10
7.1.260.0160.00515.25
7.1.250.0570.00717.14
7.1.240.0260.01117.39
7.1.230.0050.02017.08
7.1.220.0090.01417.01
7.1.210.0130.01317.12
7.1.200.0140.00716.43
7.1.190.0110.01817.02
7.1.180.0080.02117.10
7.1.170.0140.01317.38
7.1.160.0180.01117.09
7.1.150.0160.00517.15
7.1.140.0220.00616.95
7.1.130.0090.01917.22
7.1.120.0190.00517.13
7.1.110.0110.01417.17
7.1.100.0160.00412.90
7.1.90.0170.00012.06
7.1.80.0110.00712.06
7.1.70.0090.00414.43
7.1.60.0100.00717.10
7.1.50.0110.01516.97
7.1.40.0000.02617.18
7.1.30.0180.00817.12
7.1.20.0300.00317.13
7.1.10.0170.00612.06
7.1.00.0160.03819.89
7.0.330.1460.01015.23
7.0.320.0170.00916.96
7.0.310.0080.01916.96
7.0.300.0160.01216.81
7.0.290.0150.00712.84
7.0.280.0100.01016.88
7.0.270.0130.00412.06
7.0.260.0150.01216.83
7.0.250.0170.00312.89
7.0.240.0140.00716.92
7.0.230.0100.01317.15
7.0.220.0100.01616.93
7.0.210.0100.01016.75
7.0.200.0080.01316.87
7.0.190.0160.00412.06
7.0.180.0160.01116.96
7.0.170.0140.01416.74
7.0.160.0160.00512.06
7.0.150.0240.00816.95
7.0.140.0090.04319.51
7.0.130.0200.01116.93
7.0.120.0160.01616.95
7.0.110.0160.01216.77
7.0.100.0190.00916.75
7.0.90.0200.00917.04
7.0.80.0100.01616.91
7.0.70.0100.01016.83
7.0.60.0100.04218.42
7.0.50.0130.03517.36
7.0.40.0070.03517.37
7.0.30.0360.03617.45
7.0.20.0200.04417.62
7.0.10.0090.03617.42
7.0.00.0130.04017.50
5.6.400.0050.01615.94
5.6.390.0230.00615.96
5.6.380.0160.01216.09
5.6.370.0210.00415.98
5.6.360.0080.01615.59
5.6.350.0210.00415.94
5.6.340.0140.01015.98
5.6.330.0220.01015.68
5.6.320.0160.01615.93
5.6.310.0080.00412.06
5.6.300.0120.01212.06
5.6.290.0180.01216.02
5.6.280.0090.04318.47
5.6.270.0210.01116.14
5.6.260.0140.00612.06
5.6.250.0140.00012.06
5.6.240.0110.01716.13
5.6.230.0180.01416.07
5.6.220.0110.01515.68
5.6.210.0090.02818.25
5.6.200.0120.02917.18
5.6.190.0110.04618.19
5.6.180.1710.02618.11
5.6.170.0230.04016.23
5.6.160.0070.03116.39
5.6.150.0200.03917.00
5.6.140.0110.04217.05
5.6.130.0120.03016.79
5.6.120.0080.04918.38
5.6.110.0090.04416.52
5.6.100.0120.03918.41
5.6.90.0100.04116.59
5.6.80.0160.04418.21
5.6.70.2370.02318.16
5.6.60.0190.00212.06
5.6.50.0090.00912.06
5.6.40.0170.01415.83
5.6.30.0140.01415.88
5.6.20.0160.01315.64
5.6.10.0140.01415.82
5.6.00.0110.00612.06
5.5.380.0190.00815.66
5.5.370.0170.00312.06
5.5.360.0170.00312.06
5.5.350.0270.04017.89
5.5.340.0110.04617.01
5.5.330.0090.03118.04
5.5.320.2190.02418.10
5.5.310.0170.05018.02
5.5.300.0140.04016.89
5.5.290.0100.02516.92
5.5.280.0100.04518.41
5.5.270.0170.03818.22
5.5.260.0120.02418.27
5.5.250.0100.02318.18
5.5.240.0230.03716.16
5.5.230.0150.01516.00
5.5.220.0180.01115.61
5.5.210.0220.00215.68
5.5.200.0190.00915.71
5.5.190.0090.00912.06
5.5.180.0220.00715.57
5.5.170.0090.01815.98
5.5.160.0090.01915.63
5.5.150.0180.01015.75
5.5.140.0120.01215.77
5.5.130.0150.00616.00
5.5.120.0080.01915.68
5.5.110.0080.01615.61
5.5.100.0020.02015.81
5.5.90.0180.00415.80
5.5.80.0140.01415.49
5.5.70.0120.01515.98
5.5.60.0110.01315.85
5.5.50.0180.00615.83
5.5.40.0100.01415.52
5.5.30.0170.00715.57
5.5.20.0100.01015.76
5.5.10.0160.00815.48
5.5.00.0120.01315.71
5.4.450.0190.02516.02
5.4.440.0240.02816.10
5.4.430.0260.02315.95
5.4.420.0250.02115.83
5.4.410.0360.02216.07
5.4.400.0290.02315.78
5.4.390.0200.02515.78
5.4.380.0620.02315.70
5.4.370.0450.04015.55
5.4.360.0530.03115.63
5.4.350.0480.03415.55
5.4.340.0490.02915.49
5.4.330.0090.00912.41
5.4.320.0100.02312.44
5.4.310.0090.02112.41
5.4.300.0090.02012.49
5.4.290.0080.02412.43
5.4.280.0060.02212.33
5.4.270.0090.02312.39
5.4.260.0130.02212.45
5.4.250.0130.02012.31
5.4.240.0080.02412.49
5.4.230.0080.02312.32
5.4.220.0130.01912.52
5.4.210.0060.02212.32
5.4.200.0130.01912.46
5.4.190.0070.02312.47
5.4.180.0090.02212.42
5.4.170.0110.01712.44
5.4.160.0100.02212.55
5.4.150.0060.02412.55
5.4.140.0070.02312.32
5.4.130.0100.02012.23
5.4.120.0050.02212.30
5.4.110.0110.01912.36
5.4.100.0070.02312.33
5.4.90.0070.02312.24
5.4.80.0100.02412.29
5.4.70.0070.02412.26
5.4.60.0060.02212.24
5.4.50.0070.02112.26
5.4.40.0080.02112.26
5.4.30.0100.02112.30
5.4.20.0110.01912.26
5.4.10.0080.02112.24
5.4.00.0070.02312.06
5.3.290.0110.02212.91
5.3.280.0070.02512.93
5.3.270.0080.02412.86
5.3.260.0120.02212.91
5.3.250.0070.02412.89
5.3.240.0080.02212.82
5.3.230.0040.02512.80
5.3.220.0070.02512.66
5.3.210.0070.02612.72
5.3.200.0050.02212.85
5.3.190.0060.02712.75
5.3.180.0090.02012.75
5.3.170.0110.02212.87
5.3.160.0050.02612.83
5.3.150.0090.02112.84
5.3.140.0070.02212.84
5.3.130.0060.02612.82
5.3.120.0070.02612.83
5.3.110.0100.02112.80
5.3.100.0060.02412.45
5.3.90.0070.02312.54
5.3.80.0070.02312.37
5.3.70.0070.02612.45
5.3.60.0090.02312.46
5.3.50.0050.02212.40
5.3.40.0060.02112.50
5.3.30.0070.02112.37
5.3.20.0050.02312.27
5.3.10.0050.02112.11
5.3.00.0040.02212.15
5.2.170.0070.0299.18
5.2.160.0080.0269.18
5.2.150.0060.0299.18
5.2.140.0040.0319.17
5.2.130.0050.0299.13
5.2.120.0040.0299.14
5.2.110.0070.0309.14
5.2.100.0030.0309.14
5.2.90.0050.0289.14
5.2.80.0020.0329.14
5.2.70.0060.0349.13
5.2.60.0040.0339.09
5.2.50.0090.0259.06
5.2.40.0040.0309.03
5.2.30.0040.0369.01
5.2.20.0060.0309.00
5.2.10.0040.0298.91
5.2.00.0050.0288.77
5.1.60.0040.0238.06
5.1.50.0070.0398.06
5.1.40.0080.0218.04
5.1.30.0050.0258.39
5.1.20.0050.0258.41
5.1.10.0060.0358.13
5.1.00.0040.0258.14
5.0.50.0050.0266.61
5.0.40.0060.0206.48
5.0.30.0070.0306.29
5.0.20.0040.0196.26
5.0.10.0040.0226.23
5.0.00.0040.0326.23
4.4.90.0030.0164.78
4.4.80.0030.0164.75
4.4.70.0030.0154.76
4.4.60.0030.0144.76
4.4.50.0010.0164.77
4.4.40.0030.0264.71
4.4.30.0030.0144.76
4.4.20.0040.0204.84
4.4.10.0000.0184.85
4.4.00.0010.0294.76
4.3.110.0030.0154.67
4.3.100.0040.0134.66
4.3.90.0010.0154.63
4.3.80.0020.0254.59
4.3.70.0030.0154.63
4.3.60.0030.0144.63
4.3.50.0020.0164.63
4.3.40.0040.0224.54
4.3.30.0030.0143.28
4.3.20.0010.0213.26
4.3.10.0000.0203.22
4.3.00.0000.01714.09

preferences:
41.65 ms | 400 KiB | 5 Q