The What
Syntax
bool is_callable ( mixed $var, string $mode [, bool $syntax_only = false [, string $callable_name ]] )
Description
Verify that the contents of a variable can be called as a function. This can check that a simple variable contains the name of a valid function, or that an array contains a properly encoded object and function name.
You will grow in this profession when you incrementally and systematically stretch yourself....bit-by-bit.
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