Fix all this PHP code: What’s wrong with the flowing function body ? function my

Question

Fix all this PHP code:

What’s wrong with the flowing function body ?

function my_function ( $x, $y, $z )
{
   echo $x . $y . $z
}

What’s wrong with the flowing function definition?
Hint – there are two mistakes in this function. What are they?

function my_function ( x, y, z )
{
   echo $x . $y . $z
}

What’s wrong with the flowing function definition?

function my   function ( $x )
{
   echo $x;
}

What’s wrong with the flowing function definition default argument?
Hint – $x is a default argument. So what’s wrong with the function argument code?

function my_function ( $x = )
{
   $x = $x + 1;
   echo $x
}

What’s wrong with the flowing function body?

function my_function ( $a )
{
   $size_of_a = strlen( a );
    echo $size_of_a;
}

What’s wrong with the flowing function body?

function my_function ( $a )
{
   $size_of_a = ($a) strlen;
    echo $size_of_a;
}

Explanation / Answer

What’s wrong with the flowing function body?

function my_function ( $x, $y, $z )
{
   echo $x . $y . $z //double codes and semicolon is missed here.
}

The modified code:

function my_function ( $x, $y, $z )

{

    echo "$x . $y . $z";

}

What’s wrong with the flowing function definition?
Hint – there are two mistakes in this function. What are they?

function my_function ( x, y, z ) //ampersand symbol($) is missed here
{
   echo $x . $y . $z //double codes and semicolon is missed here.
}

The modified code:

function my_function ( $x,   $y,   $z )

{

    echo "$x . $y . $z";

}

What’s wrong with the flowing function definition?

function my   function ( $x ) //naming convention of function is incorrect.
{
   echo $x; //double codes is missed
}

The modified code:

function my_function ( $x )

{

    echo "$x";

}

What’s wrong with the flowing function definition default argument?
Hint – $x is a default argument. So what’s wrong with the function argument code?

function my_function ( $x = ) //Equal symbol is not required while passing the parameter.
{
   $x = $x + 1;
   echo $x //double codes and semicolon is missed here.
}

The modified code:

function my_function ( $x )
{
   $x = $x + 1;
   echo “$x”;
}

What’s wrong with the flowing function body?

function my_function ( $a )
{
   $size_of_a = strlen( a );
    echo $size_of_a; //double codes is missed here.
}

The modified code:

function my_function ( $a )
{
   $size_of_a = strlen( $a );
    echo “$size_of_a”;
}

What’s wrong with the flowing function body?

function my_function ( $a )
{
   $size_of_a = ($a) strlen; //syntax error
    echo $size_of_a; //double codes is missed here.
}

The modified code:

function my_function ( $a )
{
   $size_of_a = strlen($a);
    echo “$size_of_a”;
}

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