Learn PHP Tutorial 26 overriding and final method
This video is made for learning about overriding and final method in PHP.
Final Keyword ¶
PHP 5 introduces the final keyword, which prevents child classes from overriding a method by prefixing the definition with final. If the class itself is being defined final then it cannot be extended.
override_function
override_function — Overrides built-in functions
Description ¶
bool override_function string $function_name , string $function_args , string $function_code
Overrides built-in functions by replacing them in the symbol table.
Parameters ¶
function_name
The function to override.
function_args
The function arguments, as a comma separated string.
Usually you will want to pass this parameter, as well as the function_code parameter, as a single quote delimited string. The reason for using single quoted strings, is to protect the variable names from parsing, otherwise, if you use double quotes there will be a need to escape the variable names, e.g. \$your_var.
function_code
The new code for the function.
Return Values ¶
Returns TRUE on success or FALSE on failure.
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