Php says "question mark" equals to zero
37436
In PHP, 0 (int, zero) is equal to "first" or "last" (strings)?
60338
Null vs. False vs. 0 in PHP
2111
Get PHP to stop replacing '.' characters in $_GET or $_POST arrays?
153535
Using an HTML checkbox to put 1 or 0 into a MySQL table
79926
Why does my PHP appear to be commented out when I view it in the browser?
133763
Why is PHP not replacing the variable in string?
52580
How to prevent PDO from interpreting a question mark as a placeholder?
74155
How do I get PHP errors to display?
153624
What's the difference between is_null($var) and ($var === null)?
25703
Best way to test for a variable's existence in PHP; isset() is clearly broken
11676
Why do the less than symbol () appear wrong as upside down exclamation (¡) or question mark (¿)?
62005
Implied string comparison, 0=='', but 1=='1'
78629
How can I replace a variable in a string with the value in PHP?
112760
Bug when marking a question as duplicate
132987
Fixing the PHP empty function
67133
Is there a standard ordering for the question mark and the exclamation mark used together?
39485
Why does ('0' ? 'a' : 'b') behave different than ('0' == true ? 'a' : 'b')