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PHP

Posted by David Chihuantito Fuentes
David Chihuantito Fuentes
387 Points

Repeat a function with loop 'for' PHP

Hi everybody, I have a function called repeat_this_field() and I want to repeat some code inside that function, so I am using this code but it does not work:

<?php
function get_item_data_persons( $other_data, $cart_item ) {
    foreach ( $cart_item['booking'] as $key => $value ) {
        $total_persons = array_sum($value);
        if(!function_exists('repeat_this_field')) {
            function repeat_this_field( $checkout ) {
                for($i=0; $i<$total_persons; $i++) {
                    echo '<div id="my_custom_checkout_field'.$i.'"><h2>My Field</h2>';

                        woocommerce_form_field( 'my_field_name', array(
                        'type'          => 'date',
                        'class'         => array('form-row form-row-first validate-required validate-required'),
                        'label'         => __('Fill in this field'),
                        'placeholder'   => __('Enter something'),
                        ), $checkout->get_value( 'my_field_name' ));

                    echo '</div>';
                }
            add_action( 'woocommerce_after_checkout_billing_form', 'repeat_this_field' );
            }
        }
    }        
    return $other_data;
}
?>

Also 'my_field_name' must be different foreach item like 'my_field_name_1', 'my_field_name_2', 'my_field_name_3', etc.

Please help me. Thanks

2 Answers

Bjorn Theart
Bjorn Theart
711 Points
Bjorn Theart
Bjorn Theart
711 Points

What are die values of $key and $value for the first iteration of the first loop? Can you give an dump of the values please?

David Chihuantito Fuentes
David Chihuantito Fuentes
387 Points

Thanks fro your answer, $key is the name of each $value, the $value retrieves a number, so i created the variable $total_persons to make a sum of all $values, I have tested $total_persons and it works ok. If I use this code repeats correctly:

<?php
function get_item_data_persons( $other_data, $cart_item ) {
    foreach ( $cart_item['booking'] as $key => $value ) {
        $total_persons = array_sum($value);
        for($i=0; $i < $total_persons; $i++) {
            echo '<div id="my_custom_checkout_field'.$i.'"><h2>My Field</h2>';   
        }
    }        
    return $other_data;
}
?>

But the problem is when i use this code because the variable $total_persons is not retrieving. How can i retrieve the value of $total_persons in this code:

<?php
function get_item_data_persons( $other_data, $cart_item ) {
    foreach ( $cart_item['booking'] as $key => $value ) {
        $total_persons = array_sum($value);
        if(!function_exists('repeat_this_field')) {
            function repeat_this_field( $checkout ) {
                for($i=0; $i < $total_persons; $i++) {
                    echo '<div id="my_custom_checkout_field'.$i.'"><h2>My Field</h2>';

                        woocommerce_form_field( 'my_field_name'.$i, array(
                        'type'          => 'date',
                        'class'         => array('form-row form-row-first validate-required validate-required'),
                        'label'         => __('Fill in this field'),
                        'placeholder'   => __('Enter something'),
                        ), $checkout->get_value( 'my_field_name'.$i ));

                    echo '</div>';
                }
            }
            add_action( 'woocommerce_after_checkout_billing_form', 'repeat_this_field' );
        }
    }        
    return $other_data;
}
?>
Bjorn Theart
Bjorn Theart
711 Points
Bjorn Theart
Bjorn Theart
711 Points

If you want the total items in $value you can use 

<?php
count($value) 

// or

sizeof($value)
?>

sizeof() function in php is just an alias of the count() method

array_sum() counts the values in an array. It doesn't give you the number of items in an array