Wordpress/PHP call to undefined function error

Question

I get a call to undefined function error but can't see why.

Fatal error: Call to undefined function stringReplace() in ...z

 public function stringReplace($newName){
    strtolower(preg_replace('/-+/', '-', preg_replace('/[^\wáéíóú]/', '-', $newName)));
}

public function add(){
    add_meta_box(
        stringReplace($this->CMB_Name),
        __( $this->CMB_Name, 'plugin' ),
        array( $this, 'display' ),
        'page',
        'normal',
        'low'
    );
}

The idea is to replace text. I don't want to repeat myself a couple of times for every instance it is placed. So the function should change that.

What am I missing?

It should be $this->stringReplace instead of just calling stringReplace. — nickb
– nickb, Commented Mar 19, 2018 at 13:25

John Conde · Accepted Answer · 2018-03-19 13:26:27Z

4

stringReplace is not a function. It is a class method. You must refer to it using the $this keyword:

public function add(){
    add_meta_box(
        $this->stringReplace($this->CMB_Name),
        __( $this->CMB_Name, 'plugin' ),
        array( $this, 'display' ),
        'page',
        'normal',
        'low'
    );
}

answered Mar 19, 2018 at 13:26

John Conde

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