3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = ["a" => false, "b" => NULL]; var_dump($var); foreach($var AS $key=>$val){ echo isset($var[$key]) ? "T":"F"; echo PHP_EOL; echo NULL === $val ? "T" : "F"; echo PHP_EOL; echo empty($val) ? "T" : "F"; }

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)
8.3.60.0070.01416.63
8.3.50.0110.00921.95
8.3.40.0120.00918.82
8.3.30.0100.00718.92
8.3.20.0040.00420.31
8.3.10.0080.00023.70
8.3.00.0070.00317.63
8.2.180.0110.00418.18
8.2.170.0040.01222.96
8.2.160.0070.01020.52
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00022.25
8.2.110.0050.00522.23
8.2.100.0070.00417.84
8.2.90.0040.00717.72
8.2.80.0030.00717.97
8.2.70.0060.00317.59
8.2.60.0030.00618.05
8.2.50.0000.00918.07
8.2.40.0060.00318.28
8.2.30.0040.00418.09
8.2.20.0040.00417.79
8.2.10.0000.00718.10
8.2.00.0030.00717.73
8.1.280.0040.01125.92
8.1.270.0030.00522.11
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0000.00922.42
8.1.230.0040.00720.71
8.1.220.0060.00317.78
8.1.210.0060.00318.81
8.1.200.0030.00617.13
8.1.190.0050.00317.40
8.1.180.0000.00818.10
8.1.170.0060.00318.50
8.1.160.0040.00422.05
8.1.150.0060.00318.54
8.1.140.0070.00317.45
8.1.130.0030.00317.83
8.1.120.0000.01017.53
8.1.110.0040.00417.38
8.1.100.0000.00817.48
8.1.90.0040.00417.45
8.1.80.0000.00717.34
8.1.70.0040.00417.43
8.1.60.0070.00617.59
8.1.50.0040.00417.56
8.1.40.0030.00617.53
8.1.30.0040.00417.58
8.1.20.0020.00517.50
8.1.10.0040.00417.62
8.1.00.0040.00417.39
8.0.300.0040.00419.95
8.0.290.0060.00317.28
8.0.280.0000.00718.43
8.0.270.0000.00717.25
8.0.260.0000.00617.29
8.0.250.0030.00516.95
8.0.240.0070.00016.92
8.0.230.0000.00816.95
8.0.220.0000.00716.84
8.0.210.0000.00816.75
8.0.200.0040.00416.89
8.0.190.0000.00816.77
8.0.180.0090.00016.90
8.0.170.0050.00316.94
8.0.160.0040.00416.84
8.0.150.0000.00716.77
8.0.140.0040.00416.75
8.0.130.0000.00513.35
8.0.120.0000.00716.75
8.0.110.0000.00716.79
8.0.100.0040.00416.88
8.0.90.0000.00716.77
8.0.80.0060.01016.80
8.0.70.0070.00016.77
8.0.60.0050.00316.67
8.0.50.0000.00716.83
8.0.30.0100.00716.93
8.0.20.0120.01117.40
8.0.10.0000.00717.07
8.0.00.0030.01716.68
7.4.330.0000.00515.00
7.4.320.0030.00316.43
7.4.300.0000.00616.43
7.4.290.0030.00316.52
7.4.280.0000.00816.34
7.4.270.0000.00716.58
7.4.260.0000.00616.47
7.4.250.0030.00316.31
7.4.240.0040.00316.54
7.4.230.0000.00716.70
7.4.220.0060.01316.46
7.4.210.0020.01216.50
7.4.200.0000.00716.38
7.4.190.0050.00316.68
7.4.160.0060.01616.24
7.4.150.0150.00317.40
7.4.140.0110.01117.86
7.4.130.0130.00316.45
7.4.120.0080.01016.63
7.4.110.0030.01616.45
7.4.100.0090.00916.37
7.4.90.0060.01116.48
7.4.80.0060.01019.39
7.4.70.0100.00616.31
7.4.60.0160.00016.50
7.4.50.0000.00516.34
7.4.40.0070.00722.77
7.4.30.0080.00816.51
7.4.00.0030.01014.73
7.3.330.0030.00313.30
7.3.320.0050.00013.19
7.3.310.0000.00816.17
7.3.300.0000.00716.25
7.3.290.0000.01416.28
7.3.280.0110.00816.32
7.3.270.0090.00917.40
7.3.260.0090.00916.52
7.3.250.0190.00216.37
7.3.240.0110.01016.54
7.3.230.0140.00316.52
7.3.210.0050.01416.53
7.3.200.0190.01719.39
7.3.190.0140.00716.23
7.3.180.0060.01016.37
7.3.170.0090.00616.48
7.3.160.0130.00316.40
7.3.120.0070.01015.13
7.2.330.0150.00316.86
7.2.320.0070.01016.59
7.2.310.0070.01016.29
7.2.300.0100.00616.44
7.2.290.0000.01716.52
7.2.00.0120.00419.61
7.1.200.0140.00415.74
7.1.100.0000.01317.73
7.1.70.0000.00817.29
7.1.60.0070.01819.46
7.1.50.0060.01616.95
7.1.00.0000.08022.33
7.0.200.0000.00816.74
7.0.140.0100.06721.97
7.0.60.0170.07319.82
7.0.50.0130.07317.77
7.0.40.0030.04720.09
7.0.30.0330.07720.34
7.0.20.0300.04320.12
7.0.10.0270.07720.30
7.0.00.0070.09020.01
5.6.280.0030.07321.11
5.6.210.0130.06720.46
5.6.200.0000.04718.23
5.6.190.0070.07720.56
5.6.180.0330.07720.49
5.6.170.0330.08320.48
5.6.160.0070.04020.48
5.6.150.0100.07718.11
5.6.140.0030.06718.12
5.6.130.0000.05018.12
5.6.120.0000.07021.04
5.6.110.0070.08321.00
5.6.100.0030.04320.95
5.6.90.0130.08021.07
5.6.80.0170.07320.28
5.6.70.0370.06320.39
5.5.350.0100.08720.29
5.5.340.0070.04317.97
5.5.330.0100.05320.47
5.5.320.0330.07020.26
5.5.310.0300.08320.21
5.5.300.0100.07018.00
5.5.290.0030.07018.01
5.5.280.0130.07320.64
5.5.270.0070.05020.86
5.5.260.0100.08720.97
5.5.250.0130.08020.79
5.5.240.0100.08020.07
5.4.450.0330.07019.54
5.4.440.0200.03719.59
5.4.430.0130.04019.56
5.4.420.0130.04019.41
5.4.410.0170.03719.34
5.4.400.0270.03019.09
5.4.390.0130.04019.25
5.4.380.0170.03319.24
5.4.370.0100.04319.08
5.4.360.0170.03718.83
5.4.350.0100.04319.15
5.4.340.0170.04719.09
5.4.320.0100.04318.89
5.4.310.0100.04319.08
5.4.300.0130.03718.91
5.4.290.0130.03718.78
5.4.280.0130.03718.92
5.4.270.0170.05019.09
5.4.260.0200.04019.24
5.4.250.0200.06018.91
5.4.240.0230.07018.80
5.4.230.0270.05719.21
5.4.220.0200.05019.05
5.4.210.0230.07318.92
5.4.200.0270.05318.80
5.4.190.0300.06719.15
5.4.180.0270.04318.91
5.4.170.0300.04719.14
5.4.160.0230.06019.13
5.4.150.0300.07018.75
5.4.140.0200.07016.27
5.4.130.0270.04316.33
5.4.120.0270.05716.18
5.4.110.0330.06716.39
5.4.100.0270.06316.08
5.4.90.0200.06016.39
5.4.80.0300.03016.50
5.4.70.0200.07016.42
5.4.60.0200.06716.47
5.4.50.0300.04016.46
5.4.40.0200.06316.03
5.4.30.0170.04716.18
5.4.20.0230.05716.04
5.4.10.0200.04316.18
5.4.00.0130.05315.88
5.3.290.0100.04014.71
5.3.280.0130.05714.45
5.3.270.0330.04714.58
5.3.260.0170.05014.65
5.3.250.0200.06014.44
5.3.240.0230.04714.46
5.3.230.0230.07014.54
5.3.220.0200.05014.40
5.3.210.0230.04014.66
5.3.200.0170.07014.52
5.3.190.0330.05014.65
5.3.180.0270.05014.40
5.3.170.0230.06014.41
5.3.160.0200.05314.43
5.3.150.0270.06714.65
5.3.140.0200.07314.51
5.3.130.0130.04014.40
5.3.120.0370.03314.40
5.3.110.0200.03714.45
5.3.100.0130.05713.83
5.3.90.0100.06713.98
5.3.80.0230.07013.87
5.3.70.0130.04313.89
5.3.60.0230.03313.88
5.3.50.0200.03013.78
5.3.40.0270.06713.88
5.3.30.0230.07013.75
5.3.20.0200.07013.64
5.3.10.0200.04313.45
5.3.00.0270.05013.61
5.2.170.0100.04012.04
5.2.160.0270.04312.04
5.2.150.0130.05312.04
5.2.140.0100.05712.04
5.2.130.0100.03312.04
5.2.120.0130.04312.04
5.2.110.0100.04712.04
5.2.100.0270.05012.04
5.2.90.0200.05012.04
5.2.80.0270.03012.04
5.2.70.0130.04012.04
5.2.60.0230.05312.04
5.2.50.0170.06012.04
5.2.40.0230.02712.04
5.2.30.0170.03712.04
5.2.20.0130.06312.04
5.2.10.0070.04712.04
5.2.00.0070.03312.04
5.1.60.0130.02712.04
5.1.50.0200.02312.04
5.1.40.0230.04712.04
5.1.30.0100.04012.04
5.1.20.0200.04012.04
5.1.10.0200.04012.04
5.1.00.0070.03712.04
5.0.50.0100.03012.04
5.0.40.0130.02712.04
5.0.30.0070.06312.04
5.0.20.0100.04012.04
5.0.10.0070.04012.04
5.0.00.0070.06712.04
4.4.90.0100.03312.04
4.4.80.0100.02012.04
4.4.70.0170.03012.04
4.4.60.0100.01712.04
4.4.50.0070.03712.04
4.4.40.0000.03012.04
4.4.30.0100.01012.04
4.4.20.0100.03312.04
4.4.10.0070.01712.04
4.4.00.0030.04012.04
4.3.110.0070.02712.04
4.3.100.0100.01712.04
4.3.90.0100.02712.04
4.3.80.0100.04712.04
4.3.70.0100.03012.04
4.3.60.0070.03712.04
4.3.50.0130.03012.04
4.3.40.0070.05312.04
4.3.30.0030.03712.04
4.3.20.0030.03312.04
4.3.10.0070.02312.04
4.3.00.0030.03712.04

preferences:
47 ms | 401 KiB | 5 Q