PHP: Unexpected variable comparison result. Possible rounding issue
43
Is floating point math broken?
114832
Why does this floating-point calculation give different results on different machines?
56050
Why put the constant before the variable in a comparison?
9091
round() doesn't seem to be rounding properly
48726
Displaying floating point variable as a hex integer screws up neighbouring integer
133999
Does variables' order matter when doing == and === comparisons?
99310
PHP How do I round down to two decimal places?
152763
php == vs === operator
1260
PHP If/Else Argument and PDO Objects
44660
Type-juggling and (strict) greater/lesser-than comparisons in PHP
59227
PHP, How to catch a division by zero?
124650
Is `if (condition = value)` the correct syntax for comparison?
76392
PHP in_array() / array_search() odd behaviour
157895
Comparing double values in C#
43277
Confused by (apparent) inconsistent precision
3245
Double calculation producing odd result
25703
Best way to test for a variable's existence in PHP; isset() is clearly broken