3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo (isset($a)) ? 'a isset' : 'a is not set'; echo "\n"; echo ($a==0) ? 'a is false' : 'a is true'; echo "\n"; $b = null; echo (isset($b)) ? 'b isset' : 'b is not set'; echo "\n"; echo ($b==0) ? 'b is false' : 'b is true'; echo "\n";

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)
8.5.20.0040.00420.25
8.5.10.0100.00720.05
8.5.00.0110.01120.14
8.4.160.0130.01023.14
8.4.150.0030.00014.05
8.4.140.0140.00817.44
8.4.130.0120.00919.33
8.4.120.0150.00520.27
8.4.110.0150.00522.37
8.4.100.0050.00417.69
8.4.90.0120.00818.73
8.4.80.0130.00419.46
8.4.70.0090.00618.11
8.4.60.0090.01018.68
8.4.50.0130.00718.71
8.4.40.0160.00319.50
8.4.30.0170.00317.41
8.4.20.0170.00317.80
8.4.10.0120.00917.94
8.3.290.0050.00720.84
8.3.280.0110.00818.39
8.3.270.0120.00816.70
8.3.260.0120.00816.77
8.3.250.0060.00219.05
8.3.240.0080.01016.98
8.3.230.0070.01316.75
8.3.220.0090.01019.04
8.3.210.0130.00818.48
8.3.200.0040.00516.48
8.3.190.0090.01016.98
8.3.180.0060.00416.74
8.3.170.0110.00720.46
8.3.160.0070.00717.20
8.3.150.0080.00817.25
8.3.140.0000.00816.63
8.3.130.0090.00018.43
8.3.120.0040.00819.11
8.3.110.0080.00020.94
8.3.100.0060.00324.06
8.3.90.0060.00326.77
8.3.80.0060.00317.97
8.3.70.0070.01518.55
8.3.60.0150.00616.50
8.3.50.0130.00621.20
8.3.40.0140.00418.63
8.3.30.0090.00618.81
8.3.20.0080.00018.69
8.3.10.0050.00321.81
8.3.00.0080.00017.76
8.2.300.0140.00618.12
8.2.290.0130.00620.34
8.2.280.0130.00618.57
8.2.270.0110.00318.59
8.2.260.0110.00718.48
8.2.250.0050.00316.61
8.2.240.0040.00416.48
8.2.230.0080.00022.58
8.2.220.0060.00337.54
8.2.210.0070.01126.77
8.2.200.0060.00316.75
8.2.190.0140.00716.63
8.2.180.0070.01116.50
8.2.170.0070.01422.96
8.2.160.0100.01019.27
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00421.04
8.2.120.0000.00726.35
8.2.110.0030.00619.30
8.2.100.0040.00717.91
8.2.90.0080.00019.02
8.2.80.0050.00317.97
8.2.70.0040.00417.63
8.2.60.0060.00318.03
8.2.50.0070.00418.10
8.2.40.0040.00820.19
8.2.30.0000.00719.16
8.2.20.0050.00217.64
8.2.10.0040.00418.10
8.2.00.0050.00318.02
8.1.340.0140.00817.65
8.1.330.0080.00722.18
8.1.320.0130.00916.18
8.1.310.0000.00818.10
8.1.300.0090.00616.74
8.1.290.0000.01030.84
8.1.280.0140.00425.92
8.1.270.0080.00023.75
8.1.260.0040.00428.09
8.1.250.0040.00428.09
8.1.240.0030.00621.27
8.1.230.0090.00319.60
8.1.220.0050.00517.76
8.1.210.0060.00318.77
8.1.200.0000.00817.36
8.1.190.0040.00417.22
8.1.180.0090.00018.10
8.1.170.0040.00418.62
8.1.160.0070.00018.87
8.1.150.0070.00018.86
8.1.140.0040.00419.46
8.1.130.0000.00717.68
8.1.120.0040.00417.33
8.1.110.0000.00717.33
8.1.100.0070.00017.46
8.1.90.0040.00417.47
8.1.80.0000.00717.35
8.1.70.0070.00017.37
8.1.60.0000.00817.56
8.1.50.0060.00317.58
8.1.40.0080.00017.39
8.1.30.0000.00817.63
8.1.20.0070.00017.61
8.1.10.0000.01117.56
8.1.00.0040.00417.34
8.0.300.0040.00418.77
8.0.290.0000.00916.75
8.0.280.0030.00318.49
8.0.270.0000.00817.16
8.0.260.0000.00817.23
8.0.250.0000.00716.90
8.0.240.0000.00817.02
8.0.230.0070.00017.01
8.0.220.0000.00816.90
8.0.210.0070.00016.82
8.0.200.0030.00317.05
8.0.190.0000.00717.02
8.0.180.0000.00716.88
8.0.170.0000.00717.02
8.0.160.0000.00716.83
8.0.150.0000.00816.84
8.0.140.0000.00816.94
8.0.130.0030.00313.35
8.0.120.0040.00416.91
8.0.110.0000.00716.80
8.0.100.0040.00416.94
8.0.90.0030.00317.01
8.0.80.0080.00816.94
8.0.70.0000.00716.77
8.0.60.0080.00016.77
8.0.50.0040.00416.96
8.0.30.0100.00817.27
8.0.20.0120.00717.40
8.0.10.0040.00416.96
8.0.00.0080.01016.66
7.4.330.0020.00215.08
7.4.320.0000.00616.49
7.4.300.0030.00316.61
7.4.290.0070.00016.47
7.4.280.0040.00416.38
7.4.270.0060.00016.59
7.4.260.0040.00416.49
7.4.250.0040.00416.54
7.4.240.0040.00416.47
7.4.230.0040.00316.63
7.4.220.0150.00316.37
7.4.210.0100.01016.47
7.4.200.0000.00716.48
7.4.160.0030.01316.55
7.4.150.0110.01117.40
7.4.140.0090.00917.86
7.4.130.0070.01116.48
7.4.120.0140.00516.59
7.4.110.0090.00916.71
7.4.100.0160.00716.68
7.4.90.0080.00916.57
7.4.80.0160.00619.39
7.4.70.0080.00816.36
7.4.60.0100.00716.46
7.4.50.0060.00916.64
7.4.40.0100.00716.45
7.4.30.0060.01216.71
7.4.00.0020.01514.86
7.3.330.0050.00013.09
7.3.320.0040.00413.14
7.3.310.0030.00316.18
7.3.300.0000.00616.24
7.3.290.0100.00516.26
7.3.280.0130.00416.27
7.3.270.0070.01017.40
7.3.260.0100.00716.19
7.3.250.0090.00916.38
7.3.240.0130.00516.40
7.3.230.0160.00016.39
7.3.210.0090.00916.22
7.3.200.0130.00616.14
7.3.190.0090.00916.24
7.3.180.0120.00916.42
7.3.170.0120.00316.33
7.3.160.0090.00716.39
7.3.120.0100.01014.83
7.3.110.0100.00714.86
7.3.100.0040.01414.61
7.3.90.0040.01114.84
7.3.80.0060.00914.79
7.3.70.0110.00014.38
7.3.60.0070.00714.49
7.3.50.0000.01114.89
7.3.40.0070.01014.84
7.3.30.0120.00814.64
7.3.20.0090.00316.33
7.3.10.0070.01016.68
7.3.00.0060.00816.67
7.2.330.0100.00716.51
7.2.320.0110.00616.50
7.2.310.0060.00916.71
7.2.300.0100.00716.39
7.2.290.0110.00616.41
7.2.250.0070.01314.93
7.2.240.0030.01215.01
7.2.230.0000.01715.11
7.2.220.0150.00015.02
7.2.210.0000.01114.81
7.2.200.0040.01114.73
7.2.190.0060.00814.80
7.2.180.0060.00614.95
7.2.170.0000.01415.01
7.2.160.0030.01614.83
7.2.150.0000.01416.93
7.2.140.0040.01116.66
7.2.130.0070.00916.82
7.2.120.0120.00716.76
7.2.110.0130.00816.86
7.2.100.0080.01116.81
7.2.90.0090.00616.86
7.2.80.0080.00516.44
7.2.70.0070.00716.70
7.2.60.0050.00816.75
7.2.50.0100.01116.47
7.2.40.0050.00916.72
7.2.30.0060.01316.54
7.2.20.0100.00816.62
7.2.10.0110.00816.52
7.2.00.0080.00816.70
7.1.330.0090.00315.73
7.1.320.0120.00615.62
7.1.310.0000.01015.79
7.1.300.0030.01015.71
7.1.290.0060.00315.59
7.1.280.0060.00915.48
7.1.270.0040.00415.77
7.1.260.0070.00715.46
7.1.250.0050.00715.34
7.1.240.0030.01015.50
7.1.230.0130.00315.66
7.1.220.0040.00815.29
7.1.210.0000.01415.75
7.1.200.0080.00615.75
7.1.190.0060.00615.65
7.1.180.0000.01315.65
7.1.170.0030.00915.75
7.1.160.0170.00015.59
7.1.150.0070.01015.80
7.1.140.0100.00715.60
7.1.130.0000.01115.59
7.1.120.0090.00615.79
7.1.110.0040.01115.60
7.1.100.0030.00816.74
7.1.90.0080.00315.80
7.1.80.0060.00615.56
7.1.70.0010.00716.31
7.1.60.0100.00617.45
7.1.50.0030.00915.77
7.1.40.0040.00415.58
7.1.30.0070.00715.69
7.1.20.0090.00615.58
7.1.10.0040.00815.58
7.1.00.0020.04319.07
7.0.330.0000.00815.37
7.0.320.0000.01515.27
7.0.310.0040.00815.54
7.0.300.0060.00315.21
7.0.290.0040.01215.32
7.0.280.0000.01215.17
7.0.270.0070.01015.09
7.0.260.0080.00315.25
7.0.250.0080.00015.52
7.0.240.0060.00315.43
7.0.230.0000.01115.52
7.0.220.0040.00815.27
7.0.210.0030.00615.27
7.0.200.0200.00514.92
7.0.190.0030.00915.42
7.0.180.0090.00015.42
7.0.170.0030.00615.27
7.0.160.0030.01015.32
7.0.150.0040.00815.54
7.0.140.0040.01115.32
7.0.130.0000.01415.15
7.0.120.0100.00615.32
7.0.110.0070.00715.43
7.0.100.0080.04017.57
7.0.90.0090.03317.53
7.0.80.0110.03817.69
7.0.70.0050.04517.76
7.0.60.0070.04017.77
7.0.50.0140.02317.80
7.0.40.0070.03816.77
7.0.30.0070.02716.85
7.0.20.0030.04516.75
7.0.10.0100.03816.75
7.0.00.0030.04316.55
5.6.400.0070.00713.95
5.6.390.0050.00313.91
5.6.380.0000.01114.61
5.6.370.0070.00414.43
5.6.360.0060.00314.50
5.6.350.0100.00714.22
5.6.340.0000.01214.26
5.6.330.0090.00314.45
5.6.320.0110.00314.09
5.6.310.0000.00914.57
5.6.300.0070.00714.05
5.6.290.0030.01014.34
5.6.280.0030.03917.56
5.6.270.0090.00314.45
5.6.260.0030.01014.30
5.6.250.0030.04717.53
5.6.240.0100.04217.33
5.6.230.0100.04517.41
5.6.220.0030.04417.50
5.6.210.0110.04317.34
5.6.200.0040.03417.64
5.6.190.0090.04417.52
5.6.180.0060.04617.71
5.6.170.0080.04617.75
5.6.160.0060.02817.56
5.6.150.0030.05017.56
5.6.140.0080.04017.81
5.6.130.0100.04517.61
5.6.120.0070.04517.72
5.6.110.0120.03917.56
5.6.100.0050.04317.72
5.6.90.0070.03517.74
5.6.80.0070.04217.41
5.6.70.0110.02917.36
5.6.60.0070.04517.19
5.6.50.0080.04017.45
5.6.40.0080.03717.40
5.6.30.0060.04617.30
5.6.20.0070.04217.28
5.6.10.0120.03817.43
5.6.00.0090.02617.15
5.5.380.0080.04317.24
5.5.370.0050.04817.26
5.5.360.0050.03117.35
5.5.350.0080.04117.40
5.5.340.0130.03317.29
5.5.330.0110.03617.46
5.5.320.0070.04217.44
5.5.310.0050.04517.62
5.5.300.0080.03017.39
5.5.290.0030.04317.50
5.5.280.0100.04417.45
5.5.270.0030.04817.52
5.5.260.0100.04417.36
5.5.250.0050.03217.26
5.5.240.0100.04517.06
5.5.230.0030.04117.25
5.5.220.0120.02917.18
5.5.210.0050.02317.17
5.5.200.0050.04517.00
5.5.190.0070.04517.20
5.5.180.0080.03117.11
5.5.170.0090.00614.07
5.5.160.0120.03517.05
5.5.150.0100.03917.34
5.5.140.0020.04417.09
5.5.130.0070.04317.07
5.5.120.0130.03317.07
5.5.110.0120.03517.20
5.5.100.0090.04117.06
5.5.90.0080.03517.12
5.5.80.0070.03717.20
5.5.70.0050.04017.08
5.5.60.0050.02917.20
5.5.50.0050.03617.07
5.5.40.0070.04517.03
5.5.30.0010.03616.99
5.5.20.0070.04017.21
5.5.10.0050.04517.03
5.5.00.0040.03617.22

preferences:
194.99 ms | 403 KiB | 5 Q