How should a variable be declared in a function, if the value has to be retained over multiple calls?

Which will not give the correct date and time in PHP?

Which is the right MIME to use as a Content Type for JSON data?

Which is true regarding the str_replace() function in PHP?

Which are valid PHP data types?

What's the output? echo '1'.print(2) + 3;

<?php $x = 1; echo($x++ + ++$x + $x)*2; Which will the output be?

Function to read an entire file into an array ?

Which PHP extension allows you to simplify converting between different calendar formats?

Is there a function to listen on E_ERROR (fatal) errors?

Not a valid PHP variable type conversion?