Functions in PHP basics. Code example

Functions are a block of instructions that can be called multiple times in different parts of the program. Functions allow you to divide a program into smaller functional parts.

function showText() {
    $text = "Hi";
}

To call a function:

showText();

function arguments:

function showText($a, $b) {
    echo $a + $b;
}

We can now pass these arguments when the function is called:

myFunc(10,5);

We can also set a default value

function showText($a=10, $b=5) {
    echo $a + $b;
}

Return function

Returns data from the function and stops it:

function showText($a, $b) {
    return 100;
}

function returns 100;

pass the function as a string

function myFunc($a = 1, $b = 2)
{
    return $a + $b;
}

$func = 'myFunc';

echo $funct();

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