(PHP 4 >= 4.1.0, PHP 5, PHP 7) Session variables

(PHP 5 >= 5.0.0, PHP 7) Return the key of the current element

Process Interaction Streams Streams opened via the expect:// wrapper provide access

(PHP 4, PHP 5, PHP 7) Alias of

(PHP 5, PHP 7) Return source with stripped comments and whitespace

Examples: Logical operators illustrated The reason for the two different variations

(PHP 5 >= 5.1.0, PHP 7) Gets the stack trace as a string

Examples: There are two

(PHP 5 >= 5.1.0, PHP 7) Gets the stack trace