(No version information available, might only be in Git) Gets the error code

(PHP 4, PHP 5, PHP 7) The previous error message

(PHP 5 >= 5.0.0, PHP 7) Unset an offset abstract

(PHP 4, PHP 5, PHP 7) Pack data into binary string

Examples: Example of object comparison in PHP 5 When using the comparison operator

(PHP 4 >= 4.1.0, PHP 5, PHP 7) HTTP POST variables

(PHP 5 >= 5.0.0, PHP 7) Whether an offset exists

(PHP 4 >= 4.1.0, PHP 5, PHP 7) HTTP GET variables

(PHP 5 >= 5.1.0, PHP 7) Halts the compiler execution

(No version information available, might only be in Git) Gets the stack trace as a string