3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array( 'foo' => null, 'bar' => '', 'baz' => FALSE, ); echo 'foo: ' . (string) isset($array['foo']); echo "\n"; echo 'bar: ' . (string) isset($array['bar']); echo "\n"; echo 'baz: ' . (string) isset($array['baz']);

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)
8.3.60.0070.00716.75
8.3.50.0190.00221.04
8.3.40.0030.01018.68
8.3.30.0110.00319.04
8.3.20.0070.00020.34
8.3.10.0030.00623.65
8.3.00.0030.00519.27
8.2.180.0140.00418.29
8.2.170.0110.00422.96
8.2.160.0140.00720.17
8.2.150.0040.00424.18
8.2.140.0000.00924.66
8.2.130.0030.00626.16
8.2.120.0050.00219.16
8.2.110.0030.00622.31
8.2.100.0060.00617.97
8.2.90.0000.00719.34
8.2.80.0040.00417.97
8.2.70.0040.00417.63
8.2.60.0000.00818.05
8.2.50.0060.00318.07
8.2.40.0000.00819.95
8.2.30.0060.00318.22
8.2.20.0030.00517.73
8.2.10.0040.00418.06
8.2.00.0000.00817.59
8.1.280.0100.00325.92
8.1.270.0070.00323.97
8.1.260.0000.00726.35
8.1.250.0070.00028.09
8.1.240.0030.00622.18
8.1.230.0060.00619.16
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0000.01017.35
8.1.190.0060.00317.22
8.1.180.0070.00218.10
8.1.170.0030.00618.46
8.1.160.0000.00721.89
8.1.150.0000.00718.49
8.1.140.0040.00417.38
8.1.130.0030.00317.70
8.1.120.0040.00417.38
8.1.110.0040.00417.44
8.1.100.0040.00417.50
8.1.90.0000.00817.38
8.1.80.0000.00717.46
8.1.70.0000.00717.40
8.1.60.0050.00317.63
8.1.50.0000.00817.48
8.1.40.0040.00417.42
8.1.30.0000.00817.60
8.1.20.0040.00417.63
8.1.10.0000.00717.56
8.1.00.0040.00417.52
8.0.300.0000.00718.77
8.0.290.0070.00017.16
8.0.280.0000.00818.45
8.0.270.0030.00317.32
8.0.260.0040.00417.13
8.0.250.0070.00016.99
8.0.240.0060.00316.98
8.0.230.0030.00316.98
8.0.220.0030.00316.89
8.0.210.0030.00316.76
8.0.200.0030.00316.82
8.0.190.0040.00416.95
8.0.180.0070.00016.82
8.0.170.0040.00416.83
8.0.160.0070.00016.88
8.0.150.0050.00216.74
8.0.140.0050.00216.73
8.0.130.0060.00013.28
8.0.120.0050.00316.86
8.0.110.0000.00716.82
8.0.100.0030.00516.67
8.0.90.0070.00016.68
8.0.80.0110.00416.89
8.0.70.0080.00016.80
8.0.60.0050.00216.90
8.0.50.0000.00716.84
8.0.30.0140.00517.01
8.0.20.0080.01017.40
8.0.10.0050.00216.86
8.0.00.0110.00716.82
7.4.330.0000.00515.00
7.4.320.0030.00316.63
7.4.300.0030.00316.55
7.4.290.0030.00316.61
7.4.280.0030.00316.48
7.4.270.0000.00716.45
7.4.260.0030.00316.55
7.4.250.0040.00416.48
7.4.240.0030.00316.57
7.4.230.0030.00316.67
7.4.220.0080.01516.67
7.4.210.0060.00916.55
7.4.200.0040.00416.60
7.4.190.0030.00516.50
7.4.160.0060.00916.64
7.4.150.0100.01017.40
7.4.140.0130.00517.86
7.4.130.0130.00816.57
7.4.120.0120.00716.51
7.4.110.0110.00716.50
7.4.100.0090.00916.57
7.4.90.0090.01216.41
7.4.80.0120.00619.39
7.4.70.0070.01016.50
7.4.60.0100.01016.36
7.4.50.0000.00416.24
7.4.40.0140.00316.45
7.4.30.0100.00716.41
7.4.00.0030.01015.18
7.3.330.0000.00613.19
7.3.320.0000.00613.17
7.3.310.0000.00716.21
7.3.300.0000.00716.16
7.3.290.0060.00916.30
7.3.280.0060.01416.27
7.3.270.0070.01017.40
7.3.260.0120.00616.25
7.3.250.0070.01116.53
7.3.240.0120.00616.33
7.3.230.0150.00716.39
7.3.210.0110.00816.57
7.3.200.0060.01519.39
7.3.190.0070.01016.36
7.3.180.0110.00716.34
7.3.170.0070.01416.50
7.3.160.0090.01116.46
7.3.120.0060.00914.41
7.3.110.0090.00614.84
7.3.100.0100.00614.70
7.3.90.0030.01414.68
7.3.80.0030.00714.95
7.3.70.0000.01614.56
7.3.60.0040.01114.76
7.3.50.0030.00914.50
7.3.40.0000.01414.51
7.3.30.0060.00614.78
7.3.20.0080.00416.42
7.3.10.0100.00616.51
7.3.00.0110.00816.66
7.2.330.0070.01016.55
7.2.320.0070.01316.64
7.2.310.0130.01016.51
7.2.300.0090.00916.33
7.2.290.0100.00716.41
7.2.240.0030.01314.82
7.2.230.0110.00314.78
7.2.220.0000.01014.92
7.2.210.0030.01214.89
7.2.200.0080.00814.82
7.2.190.0030.01315.04
7.2.180.0100.00714.89
7.2.170.0070.00714.82
7.2.160.0060.00614.89
7.2.150.0100.00716.93
7.2.140.0040.01416.94
7.2.130.0100.00816.50
7.2.120.0120.00616.72
7.2.110.0090.00816.66
7.2.100.0100.00716.55
7.2.90.0110.00416.71
7.2.80.0080.00516.46
7.2.70.0100.00416.62
7.2.60.0060.00916.72
7.2.50.0060.00916.80
7.2.40.0020.00916.69
7.2.30.0050.00916.85
7.2.20.0150.00416.63
7.2.10.0080.00616.67
7.2.00.0090.00616.57
7.1.330.0030.01015.91
7.1.320.0080.00615.88
7.1.310.0090.00315.46
7.1.300.0070.00715.59
7.1.290.0080.00415.56
7.1.280.0090.00615.63
7.1.270.0060.00915.48
7.1.260.0120.00015.37
7.1.250.0050.00815.59
7.1.200.0060.00915.67
7.1.70.0060.00916.96
7.1.60.0070.01719.46
7.1.50.0130.01016.74
7.1.00.0030.07722.28
7.0.200.0070.00016.60
7.0.140.0030.07322.16
7.0.60.0100.06019.91
7.0.50.0100.07317.79
7.0.40.0100.07719.99
7.0.30.0270.07020.00
7.0.20.0130.06320.13
7.0.10.0070.04320.04
7.0.00.0170.08020.00
5.6.280.0070.06720.85
5.6.210.0200.06320.74
5.6.200.0070.05718.21
5.6.190.0170.06720.35
5.6.180.0200.04720.27
5.6.170.0300.05020.44
5.6.160.0130.07720.50
5.6.150.0030.08718.09
5.6.140.0100.08018.11
5.6.130.0130.08318.17
5.6.120.0030.04320.87
5.6.110.0030.04020.96
5.6.100.0170.07320.97
5.6.90.0100.08720.98
5.6.80.0000.09020.50
5.5.350.0230.07320.34
5.5.340.0070.07317.90
5.5.330.0070.03720.13
5.5.320.0430.07020.24
5.5.310.0230.04020.41
5.5.300.0170.07017.95
5.5.290.0030.07717.92
5.5.280.0030.08720.96
5.5.270.0030.06320.84
5.5.260.0000.09020.86
5.5.250.0070.06720.57
5.5.240.0170.07720.11
5.4.450.0530.04319.21
5.4.440.0070.04719.36
5.4.430.0030.03319.09
5.4.420.0300.04319.45
5.4.410.0600.03719.28
5.4.400.0400.03019.11
5.4.390.0230.03019.08
5.4.380.0300.05018.59
5.4.370.0430.06318.70
5.4.360.0270.06018.57
5.4.350.0400.05318.56
5.4.340.0400.05718.70
5.4.320.0060.03612.45
5.4.310.0060.03812.45
5.4.300.0040.03812.45
5.4.290.0100.04212.45
5.4.280.0180.08012.35
5.4.270.0080.06712.34
5.4.260.0170.07712.34
5.4.250.0090.05212.35
5.4.240.0040.04412.34
5.4.230.0080.04812.34
5.4.220.0080.04412.34
5.4.210.0040.04312.34
5.4.200.0070.04412.34
5.4.190.0060.03812.33
5.4.180.0070.03512.34
5.4.170.0080.03812.34
5.4.160.0130.03412.34
5.4.150.0070.04912.34
5.4.140.0100.04912.02
5.4.130.0080.04812.01
5.4.120.0110.03511.96
5.4.110.0100.03711.96
5.4.100.0050.03611.96
5.4.90.0070.03611.96
5.4.80.0070.03711.96
5.4.70.0080.03411.96
5.4.60.0070.03411.96
5.4.50.0060.03511.96
5.4.40.0090.03111.95
5.4.30.0060.03511.95
5.4.20.0080.03211.95
5.4.10.0090.03111.95
5.4.00.0060.03611.44
5.3.290.0070.04412.80
5.3.280.0070.03812.71
5.3.270.0040.04112.72
5.3.260.0030.04512.72
5.3.250.0030.03912.72
5.3.240.0050.04112.72
5.3.230.0060.04112.71
5.3.220.0060.04012.68
5.3.210.0040.04112.68
5.3.200.0040.04112.68
5.3.190.0060.03912.68
5.3.180.0080.03612.67
5.3.170.0090.03512.67
5.3.160.0090.03512.68
5.3.150.0080.03812.67
5.3.140.0120.04412.66
5.3.130.0100.04312.66
5.3.120.0090.04012.65
5.3.110.0060.03912.66
5.3.100.0070.03712.12
5.3.90.0080.03412.08
5.3.80.0050.04012.07
5.3.70.0070.03512.07
5.3.60.0090.03312.06
5.3.50.0050.03712.00
5.3.40.0100.03312.00
5.3.30.0090.03311.94
5.3.20.0060.03411.72
5.3.10.0100.03011.69
5.3.00.0060.03511.68
5.2.170.0060.0349.18
5.2.160.0050.0309.18
5.2.150.0050.0319.18
5.2.140.0040.0329.18
5.2.130.0070.0349.14
5.2.120.0100.0319.13
5.2.110.0060.0279.14
5.2.100.0060.0279.14
5.2.90.0060.0279.14
5.2.80.0070.0289.13
5.2.70.0090.0279.13
5.2.60.0050.0309.09
5.2.50.0040.0339.06
5.2.40.0070.0289.03
5.2.30.0020.0359.01
5.2.20.0020.0339.00
5.2.10.0080.0258.92
5.2.00.0040.0298.77
5.1.60.0020.0258.06
5.1.50.0050.0248.05
5.1.40.0010.0288.04
5.1.30.0070.0238.39
5.1.20.0070.0248.41
5.1.10.0040.0258.14
5.1.00.0080.0218.14
5.0.50.0040.0206.62
5.0.40.0040.0186.47
5.0.30.0030.0346.29
5.0.20.0040.0186.26
5.0.10.0040.0256.24
5.0.00.0030.0326.23
4.4.90.0020.0174.78
4.4.80.0030.0154.75
4.4.70.0020.0174.75
4.4.60.0010.0174.75
4.4.50.0040.0144.77
4.4.40.0050.0244.71
4.4.30.0040.0154.76
4.4.20.0040.0154.84
4.4.10.0040.0154.85
4.4.00.0040.0234.75
4.3.110.0040.0144.67
4.3.100.0000.0174.67
4.3.90.0050.0124.63
4.3.80.0030.0254.58
4.3.70.0050.0144.63
4.3.60.0040.0144.62
4.3.50.0080.0204.63
4.3.40.0020.0264.54
4.3.30.0020.0173.29
4.3.20.0010.0183.25
4.3.10.0040.0153.22
4.3.00.0070.01316.15

preferences:
37.04 ms | 401 KiB | 5 Q