PHP function returning 0 if in loop
1736
How do the PHP equality (== double equals) and identity (=== triple equals) comparison operators differ?
76392
PHP in_array() / array_search() odd behaviour
6988
How to check whether an array is empty using PHP?
63372
see if a variable equals any other variables in a list php
158001
Dynamic Comparison Operators in PHP
76315
'Return' keyword returns only one element from a loop?
23488
"Missing return statement" within if / for / while
100563
PHP: Right way to declare variable before use in loop
6971
boolean variable values in PHP to javascript implementation
102897
check multiple values exists php array
120439
Why is my function returning 0 when when I try to give it arguments by replacement?
37436
In PHP, 0 (int, zero) is equal to "first" or "last" (strings)?
112141
Variable in JavaScript callback functions always gets last value in loop?
106258
What is the reason that an empty string evaluates to false in Javascript
153535
Using an HTML checkbox to put 1 or 0 into a MySQL table
25703
Best way to test for a variable's existence in PHP; isset() is clearly broken
90598
PHP considers null is equal to zero