<?php
function insertMsg( )
{
echo "student details inserted Successfully!";
}
insertMsg( );
?>

The following example has a function with two arguments (\(\$\)name and \(\$\)Strength):
function School_Name(\(\$\)snare,\(\$\)Strength) {
echo \(\$\)sname."in Tamilnadu and Student Strength is".\(\$\)Strength;
}
School-Name ("Government Higher Secondary School Madurai",200);
School-Name ("Government Higher Secondary School Thichy",300);
School-Name ("Govemment Higher Secondary School Chennai",250);
School-Name ("Government Higher Secondary School Kanchipuram"',100);
School-Name ("Government Higher Secondary School Tirunelveli",200);
?>

(i) It is just like variables.
(ii) Parameter is also called as arguments.
(iii) Required information is shared between function declaration and function calling inside the Program.
(iv)  Arguments are mentioned after the function name and inside the parenthesis.
(v) There is no limit for sending arguments and arguments are separated by comma.

There are two important steps the programmer has to create for user defined functions. They are
(i) Function declaration;
(ii) Function calling.
Function Declaration begins with the keyword "function".
Syntax:
function functionName( )
{
list of code to be executed;
}
Function calling: Programmer has to make Function call inside the respective program.
Syntax:
functionName( );

A function will be executed by a call to the Function and the function returns any data type values or NULL value to the called function in the part of respective program.
Advantages:
(i) Reducing duplication of the code.
(ii) Reuse of code.
(iii) Functions are information hiding.
(iv) It decomposes complex problems into simpler pieces.

1. Reducing duplication of code
2. Decomposing complex problems into simpler pieces
3. Improving clarity of the code
4. Reuse of code
5. Information hiding

1. PHP Parameterized functions are the functions with parameters or arguments.
2. The parameter is also called as arguments, it is like variables.
Rules:
1. The arguments are mentioned after the function name and inside of the parenthesis.
2. There is no limit for sending arguments, just separate them with a comma notation.