3v4l.org

run code in 300+ PHP versions simultaneously
<?php function checkFloat(&$var) { if (is_float($var) || is_numeric($var)) { $var = unpack("f", pack("f", $var))[1]; } else { throw new \Exception("Expect float."); } } $var = 0.9; checkFloat($var); var_dump($var); $var = 0.7; checkFloat($var); var_dump($var); $var = 0.3; checkFloat($var); var_dump($var); $var = 0.1; checkFloat($var); var_dump($var);

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)
8.4.140.0110.01017.38
8.4.130.0100.00917.83
8.4.120.0110.00922.04
8.4.110.0300.00519.08
8.4.100.0260.00918.18
8.4.90.0240.00818.24
8.4.80.0230.00418.32
8.4.70.0250.00717.82
8.4.60.0180.00418.28
8.4.50.0140.00718.31
8.4.40.0150.00417.46
8.4.30.0170.00519.06
8.4.20.0250.00618.49
8.4.10.0260.00818.48
8.3.260.0110.00816.64
8.3.250.0130.00618.50
8.3.240.0210.00916.58
8.3.230.0130.00516.55
8.3.220.0190.00517.72
8.3.210.0090.00617.42
8.3.200.0140.00716.38
8.3.190.0230.01016.81
8.3.180.0170.00616.81
8.3.170.0120.00718.78
8.3.160.0210.00916.88
8.3.150.0230.00916.94
8.3.140.0250.00418.54
8.3.130.0150.00417.33
8.3.120.0250.00417.69
8.3.110.0210.00818.73
8.3.100.0230.00420.21
8.3.90.0270.00321.60
8.3.80.0250.00417.14
8.3.70.0240.00817.29
8.3.60.0140.00716.52
8.3.50.0130.00716.55
8.3.40.0170.00319.62
8.3.30.0150.00318.70
8.3.20.0110.00821.48
8.3.10.0120.00721.52
8.3.00.0160.00819.50
8.2.290.0170.00718.53
8.2.280.0140.00517.65
8.2.270.0180.01117.62
8.2.260.0220.00316.68
8.2.250.0160.00816.51
8.2.240.0230.00617.76
8.2.230.0190.00619.31
8.2.220.0130.00627.09
8.2.210.0180.00621.48
8.2.200.0220.00416.50
8.2.190.0260.00616.40
8.2.180.0220.01016.30
8.2.170.0210.00918.40
8.2.160.0270.00720.26
8.2.150.0150.00819.85
8.2.140.0180.00720.62
8.2.130.0180.00820.62
8.2.120.0170.00819.98
8.2.110.0180.00719.83
8.2.100.0150.00419.74
8.2.90.0120.00719.77
8.2.80.0160.00919.87
8.2.70.0200.00519.50
8.2.60.0200.00719.45
8.2.50.0170.01119.72
8.2.40.0130.00819.64
8.2.30.0150.00819.44
8.2.20.0130.00819.53
8.2.10.0160.00519.38
8.2.00.0190.00519.50
8.1.330.0200.01019.04
8.1.320.0220.00716.04
8.1.310.0180.00617.24
8.1.300.0160.00517.87
8.1.290.0210.00423.42
8.1.280.0220.01020.99
8.1.270.0120.00721.68
8.1.260.0110.00721.72
8.1.250.0170.00621.58
8.1.240.0140.00719.23
8.1.230.0150.00619.34
8.1.220.0200.00719.63
8.1.210.0150.00919.27
8.1.200.0090.00719.38
8.1.190.0180.00619.30
8.1.180.0140.00819.18
8.1.170.0140.00719.49
8.1.160.0190.00519.24
8.1.150.0130.00919.40
8.1.140.0120.00919.33
8.1.130.0140.00919.44
8.1.120.0160.00819.34
8.1.110.0100.00919.36
8.1.100.0120.00519.34
8.1.90.0160.00919.29
8.1.80.0120.00520.09
8.1.70.0170.00819.39
8.1.60.0160.00819.47
8.1.50.0150.00619.37
8.1.40.0120.01119.41
8.1.30.0190.00519.47
8.1.20.0150.00620.34
8.1.10.0130.01019.44
8.1.00.0170.00619.29

preferences:
37.36 ms | 406 KiB | 6 Q