Menu
PHP has a huge collection of internal or built-in functions that you can call directly within your PHP scripts to perform a specific task, like gettype() , print_r() , var_dump , etc.
Function names follow the same rules as other labels in PHP. A valid function name starts with a letter or underscore, followed by any number of letters, numbers, or underscores. As a regular expression, it would be expressed thus: ^[a-zA-Z_\x80-\xff][a-zA-Z0-9_\x80-\xff]*$ . See also the Userland Naming Guide.
__FUNCTION__ returns only the name of the function. while as __METHOD__ returns the name of the class alongwith the name of the function.
5. Which of the following are valid function names? Explanation: A valid function name can start with a letter or underscore, followed by any number of letters, numbers, or underscores. According to the specified regular expression ([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*), a function name like this one is valid.
The accurate way is to use the __FUNCTION__ predefined magic constant.
Example:
class Test {
function MethodA(){
echo __FUNCTION__;
}
}
Result: MethodA.
You can use the magic constants __METHOD__ (includes the class name) or __FUNCTION__ (just function name) depending on if it's a method or a function... =)
If you are using PHP 5 you can try this:
function a() {
$trace = debug_backtrace();
echo $trace[0]["function"];
}
<?php
class Test {
function MethodA(){
echo __FUNCTION__ ;
}
}
$test = new Test;
echo $test->MethodA();
?>
Result: "MethodA";
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With