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I'm trying to find if it's possible to dynamically generate functions and hooks. All functions do the same thing, and all hooks are essentially the same.

Here's an example of a hook/function combo:

add_action( 'woocommerce_single_product_summary', 'cx_inputKVA_show', 5 );
function cx_inputKVA_show() {
    global $product;
    // Do not show this on variable products
    if ( $product->product_type <> 'variable' ) {
        $inputKVA = get_post_meta( $product->id, 'cx_inputKVA', true );
        if ( $inputKVA <> '' ) {
            echo '<div class="woocommerce_msrp">';
            _e( 'Input KVA: ', 'woocommerce' );
            echo '<span class="woocommerce-cx_inputKVA">' . _e( $inputKVA ) . '</span>';
            echo '</div>';
        }
    }
}

I want to use an array like:

$fieldset = array(
    array(
        1 => 'slug',
        2 => 'title'
    )
    array(
        1 => 'slug',
        2 => 'title'
    )
);

And then use a foreach() loop to generate 3 hooks and 3 functions for each nested array. Before, I was just writing each one separately, but now I need to generate for 23 items and it's too much code, too messy to change.

It would make the hook like:

add_action( 'woocommerce_single_product_summary', 'cx_[plug]_show', 5 );

and the function like

function cx_inputKVA_show() {
    global $product;
    // Do not show this on variable products
    if ( $product->product_type <> 'variable' ) {
        $[plug] = get_post_meta( $product->id, 'cx_[plug]', true );
        if ( $[plug] <> '' ) {
            echo '<div class="woocommerce_msrp">';
            _e( '[title]: ', 'woocommerce' );
            echo '<span class="woocommerce-cx_[plug]">' . _e( $[plug] ) . '</span>';
            echo '</div>';
        }
    }
}

Answer------------------ Since Milo is a genius, I got this done much simpler by just looping through the array inside of the function, instead of trying to generate a new function dynamically for each item. The array contains 'slug' and 'title' attributes, and here's the function:

function cx_product_field() {
    global $fieldset;
    foreach ( $fieldset as $field ){
        woocommerce_wp_text_input(
            array( 
                'id' => 'cx_'.$field['slug'], 
                'class' => 'wc_input_text', 
                'label' => __( $field['title'], 'woocommerce' )
            ) 
        );
    }
}
  • 3
    maybe I'm missing the point here, but why do you need 23 identical functions rather than looping over an array of data in a single hooked function? – Milo Jun 17 '14 at 4:04
  • I see your point. Let me give that a go. Occam's razor and all that, lol. – user54312 Jun 17 '14 at 5:38
  • yeah, thanks Milo. updated my post with the solution. If you want to submit your comment as an answer, I'll select it. – user54312 Jun 17 '14 at 5:48
  • 4
    Please post your solution as an answer, and return to this page in two days to accept your own answer :-) – Pieter Goosen Jun 17 '14 at 6:05
1

Since Milo is a genius, I got this done much simpler by just looping through the array inside of the function, instead of trying to generate a new function dynamically for each item. The array contains 'slug' and 'title' attributes, and here's the function:

function cx_product_field() {
    global $fieldset;
    foreach ( $fieldset as $field ){
        woocommerce_wp_text_input(
            array( 
                'id' => 'cx_'.$field['slug'], 
                'class' => 'wc_input_text', 
                'label' => __( $field['title'], 'woocommerce' )
            ) 
        );
    }
}

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