PHP why is 0=='all' true?
1736
How do the PHP equality (== double equals) and identity (=== triple equals) comparison operators differ?
19434
Why does mysqli num_rows always return 0?
148619
Is there a reason not to use  (null safe equals operator) in mysql instead of =?
59623
Understanding PHP & (ampersand, bitwise and) operator
125283
What is %0|%0 and how does it work?
58980
How does the ternary operator work?
63372
see if a variable equals any other variables in a list php
157148
What are the valid characters in PHP variable, method, class, etc names?
59227
PHP, How to catch a division by zero?
28744
PHP Constants Containing Arrays?
17078
if(false==condition). Why?
149735
Are objects in PHP passed by value or reference?
105179
Do you prefer "if (var)" or "if (var != 0)"?
105242
Uppercase Booleans vs. Lowercase in PHP
120580
What does "=>" mean in PHP?
62005
Implied string comparison, 0=='', but 1=='1'
71106
Python "all" function with conditional generator expression returning True. Why?