3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array ('test' => 1, 'hello' => NULL, 'pie' => array('a' => 'apple')); print isset($a['test']); // TRUE print isset($a['foo']); // FALSE print isset($a['hello']); // FALSE

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)
8.3.60.0170.00318.18
8.3.50.0120.00622.04
8.3.40.0120.00618.86
8.3.30.0140.00018.88
8.3.20.0000.00820.16
8.3.10.0050.00323.52
8.3.00.0040.00420.70
8.2.180.0120.00316.75
8.2.170.0090.00622.96
8.2.160.0100.00322.25
8.2.150.0050.00324.18
8.2.140.0000.01524.66
8.2.130.0040.00426.16
8.2.120.0130.00317.75
8.2.110.0030.00622.10
8.2.100.0060.00617.91
8.2.90.0040.00419.27
8.2.80.0000.00817.97
8.2.70.0090.00317.63
8.2.60.0000.00817.93
8.2.50.0000.00818.07
8.2.40.0040.00420.07
8.2.30.0040.00418.11
8.2.20.0000.00717.71
8.2.10.0040.00417.52
8.2.00.0060.00317.61
8.1.280.0110.00725.92
8.1.270.0070.00323.79
8.1.260.0040.00426.35
8.1.250.0030.00628.09
8.1.240.0000.00823.75
8.1.230.0120.00019.07
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0040.00417.36
8.1.190.0080.00317.40
8.1.180.0030.00618.10
8.1.170.0040.00418.55
8.1.160.0070.00022.05
8.1.150.0000.00718.58
8.1.140.0000.00717.35
8.1.130.0000.00817.81
8.1.120.0040.00417.26
8.1.110.0040.00417.39
8.1.100.0000.00717.30
8.1.90.0070.00317.26
8.1.80.0000.00717.29
8.1.70.0070.00017.28
8.1.60.0000.00917.41
8.1.50.0000.00717.35
8.1.40.0040.00417.34
8.1.30.0000.00817.63
8.1.20.0050.00317.59
8.1.10.0030.00517.42
8.1.00.0040.00417.54
8.0.300.0040.00418.77
8.0.290.0030.00317.05
8.0.280.0000.00718.43
8.0.270.0030.00317.31
8.0.260.0040.00416.70
8.0.250.0000.00716.98
8.0.240.0000.00816.82
8.0.230.0030.00316.87
8.0.220.0070.00016.79
8.0.210.0070.00016.88
8.0.200.0000.00716.94
8.0.190.0050.00316.91
8.0.180.0070.00316.77
8.0.170.0000.00816.87
8.0.160.0030.00316.72
8.0.150.0070.00016.70
8.0.140.0000.00716.80
8.0.130.0000.00513.21
8.0.120.0070.00016.82
8.0.110.0050.00316.81
8.0.100.0040.00416.94
8.0.90.0050.00216.78
8.0.80.0070.01016.80
8.0.70.0080.00016.82
8.0.60.0040.00416.88
8.0.50.0070.00016.84
8.0.30.0120.01016.99
8.0.20.0100.00917.40
8.0.10.0080.00016.82
8.0.00.0100.01016.70
7.4.330.0050.00015.07
7.4.320.0000.00616.34
7.4.300.0000.00716.56
7.4.290.0000.00716.42
7.4.280.0040.00416.48
7.4.270.0000.00816.54
7.4.260.0040.00416.55
7.4.250.0040.00416.40
7.4.240.0050.00216.37
7.4.230.0030.00316.32
7.4.220.0060.00916.46
7.4.210.0060.01016.58
7.4.200.0000.00716.51
7.4.190.0030.00316.63
7.4.160.0120.00616.37
7.4.150.0060.01017.40
7.4.140.0090.00817.86
7.4.130.0080.01016.45
7.4.120.0100.01016.38
7.4.110.0060.01516.51
7.4.100.0100.00716.42
7.4.90.0100.00616.26
7.4.80.0160.00716.50
7.4.70.0040.01516.39
7.4.60.0090.00616.30
7.4.50.0000.00816.45
7.4.40.0080.00822.77
7.4.30.0160.00016.53
7.4.00.0030.00714.82
7.3.330.0050.00013.12
7.3.320.0050.00013.18
7.3.310.0070.00016.22
7.3.300.0000.00616.11
7.3.290.0060.01516.14
7.3.280.0110.00716.21
7.3.270.0000.01717.40
7.3.260.0080.01616.34
7.3.250.0110.00716.17
7.3.240.0110.00616.52
7.3.230.0030.01316.39
7.3.210.0140.00316.37
7.3.200.0180.00419.39
7.3.190.0060.01016.41
7.3.180.0080.00816.20
7.3.170.0150.00616.27
7.3.160.0060.00916.32
7.3.120.0090.00614.89
7.3.10.0030.00816.75
7.3.00.0030.01016.41
7.2.330.0060.01116.57
7.2.320.0110.00916.64
7.2.310.0080.00816.39
7.2.300.0090.00616.27
7.2.290.0070.01016.66
7.2.130.0000.01116.80
7.2.120.0080.00616.72
7.2.110.0060.00316.82
7.2.100.0070.00716.73
7.2.90.0030.01016.77
7.2.80.0030.00916.73
7.2.70.0030.00916.67
7.2.60.0150.00016.55
7.2.50.0070.01016.84
7.2.40.0100.00316.79
7.2.30.0100.00316.90
7.2.20.0090.00316.75
7.2.10.0000.01116.71
7.2.00.0070.00718.03
7.1.250.0060.00615.64
7.1.100.0040.01118.05
7.1.70.0000.01616.90
7.1.60.0100.01419.32
7.1.50.0090.01316.86
7.1.00.0070.07322.45
7.0.200.0080.00816.78
7.0.140.0100.06721.96
7.0.60.0130.07320.00
7.0.50.0100.07017.83
7.0.40.0100.04020.12
7.0.30.0200.08320.34
7.0.20.0330.06320.16
7.0.10.0070.08720.18
7.0.00.0000.05320.16
5.6.280.0070.07020.82
5.6.210.0070.03720.71
5.6.200.0070.07018.19
5.6.190.0230.07320.77
5.6.180.0270.08320.60
5.6.170.0330.08020.40
5.6.160.0070.08720.32
5.6.150.0030.07018.11
5.6.140.0100.07718.09
5.6.130.0130.03718.08
5.6.120.0130.07720.99
5.6.110.0130.08721.08
5.6.100.0100.08020.88
5.6.90.0030.08721.01
5.6.80.0170.05320.37
5.5.350.0370.06720.52
5.5.340.0030.08017.98
5.5.330.0030.04020.36
5.5.320.0230.03720.31
5.5.310.0270.07020.27
5.5.300.0100.08317.91
5.5.290.0030.08017.95
5.5.280.0000.07720.86
5.5.270.0030.06320.86
5.5.260.0170.06320.88
5.5.250.0070.06020.67
5.5.240.0230.06720.34
5.4.450.0370.06019.54
5.4.440.0630.06019.09
5.4.430.1270.07019.45
5.4.420.0600.06019.31
5.4.410.0570.05719.36
5.4.400.0770.06019.21
5.4.390.0970.05019.23
5.4.380.0270.04018.68
5.4.370.0200.05018.73
5.4.360.0130.05018.65
5.4.350.0130.05318.61
5.4.340.0200.04318.72
5.4.320.0060.03512.45
5.4.310.0050.03812.45
5.4.300.0050.03512.46
5.4.290.0070.04212.45
5.4.280.0110.03212.34
5.4.270.0040.03812.34
5.4.260.0080.04012.34
5.4.250.0050.04412.35
5.4.240.0080.03612.35
5.4.230.0030.04212.34
5.4.220.0050.03812.34
5.4.210.0050.04112.34
5.4.200.0050.03712.34
5.4.190.0060.03812.34
5.4.180.0050.03612.34
5.4.170.0340.08512.33
5.4.160.0200.04012.32
5.4.150.0180.04212.32
5.4.140.0150.04512.00
5.4.130.0170.04711.99
5.4.120.0150.04511.95
5.4.110.0170.04011.94
5.4.100.0200.03811.95
5.4.90.0190.04011.94
5.4.80.0180.04111.94
5.4.70.0170.04011.94
5.4.60.0170.04211.94
5.4.50.0180.04411.94
5.4.40.0100.04811.93
5.4.30.0150.04511.93
5.4.20.0160.04011.93
5.4.10.0160.04111.93
5.4.00.0160.04111.41
5.3.290.0070.04812.80
5.3.280.0080.04812.71
5.3.270.0180.04312.72
5.3.260.0150.04612.72
5.3.250.0170.04312.72
5.3.240.0190.07212.71
5.3.230.0180.07412.71
5.3.220.0190.04112.68
5.3.210.0210.04112.68
5.3.200.0220.04312.68
5.3.190.0220.04012.68
5.3.180.0170.04412.67
5.3.170.0170.04412.67
5.3.160.0200.04912.67
5.3.150.0180.05012.68
5.3.140.0240.04812.66
5.3.130.0250.07412.66
5.3.120.0160.04612.66
5.3.110.0140.04712.66
5.3.100.0150.04712.12
5.3.90.0500.10612.09
5.3.80.0170.04512.07
5.3.70.0220.04212.07
5.3.60.0180.04212.06
5.3.50.0150.04812.00
5.3.40.0190.04112.00
5.3.30.0140.04311.95
5.3.20.0360.05511.72
5.3.10.0170.04011.69
5.3.00.0110.04511.67
5.2.170.0130.0339.18
5.2.160.0290.0819.17
5.2.150.0150.0349.17
5.2.140.0110.0389.18
5.2.130.0250.0619.13
5.2.120.0100.0409.13
5.2.110.0100.0489.14
5.2.100.0110.0389.14
5.2.90.0170.0339.14
5.2.80.0100.0369.12
5.2.70.0350.0769.13
5.2.60.0150.0329.09
5.2.50.0160.0339.05
5.2.40.0160.0359.03
5.2.30.0130.0359.00
5.2.20.0180.0309.00
5.2.10.0110.0358.92
5.2.00.0140.0308.78
5.1.60.0110.0288.06
5.1.50.0090.0318.06
5.1.40.0100.0288.05
5.1.30.0090.0338.39
5.1.20.0090.0328.43
5.1.10.0110.0318.14
5.1.00.0110.0328.14
5.0.50.0070.0276.61
5.0.40.0070.0256.48
5.0.30.0070.0376.29
5.0.20.0110.0206.27
5.0.10.0090.0216.24
5.0.00.0110.0326.23
4.4.90.0110.0144.78
4.4.80.0050.0194.76
4.4.70.0090.0164.75
4.4.60.0040.0214.75
4.4.50.0090.0164.77
4.4.40.0080.0284.71
4.4.30.0040.0214.76
4.4.20.0200.0654.84
4.4.10.0080.0174.85
4.4.00.0080.0274.76
4.3.110.0070.0174.67
4.3.100.0050.0194.66
4.3.90.0060.0174.64
4.3.80.0070.0274.58
4.3.70.0090.0154.63
4.3.60.0070.0184.62
4.3.50.0080.0174.63
4.3.40.0250.0704.54
4.3.30.0060.0183.30
4.3.20.0040.0193.29
4.3.10.0030.0193.25
4.3.00.0130.0236.93

preferences:
47.79 ms | 401 KiB | 5 Q