Retrieving repeater data from ACF Pro and adding it to Woocommerce Tab - php

Question

I'm attempting to add repeater data from Advanced Custom Fields Pro onto a Woocommerce product page. I have 3 custom fields, all repeaters. All 3 fields have subfields, such as a Title, and a Value.
For example, Technical Specifics (technical_specifics) has 2 subfields, Titles (titles) and Values (values). This data is being displayed as a table.
SDS and TDS both have File Name (file_name) and PDF link (pdf_file). This data is being displayed as a file name and a link to a PDF on the server.
I have the below code, which adds the tabs correctly, but no data is coming into the page, so the tabs have blank data. What am I doing wrong to retrieve the array data?
add_filter( 'woocommerce_product_tabs', 'woo_new_product_tab' );
/*
* Add 3 custom product data tabs
*/
function woo_new_product_tab( $tabs ) {
// Adds the new tab
if(get_field('technical_specifics'))
$tabs['technical_specifics'] = array(
'title' => __( 'Technical Specifics', 'woocommerce' ),
'priority' => 15,
'callback' => 'technical_specifics_callback'
);
if(get_field('sds'))
$tabs['sds'] = array(
'title' => __( 'SDS', 'woocommerce' ),
'priority' => 20,
'callback' => 'sds_callback'
);
if(get_field('tds'))
$tabs['tds'] = array(
'title' => __( 'TDS', 'woocommerce' ),
'priority' => 25,
'callback' => 'tds_callback'
);
return $tabs;
}
function technical_specifics_callback() {
// The new tab content
$per_unit_or_square = get_field( 'pricem2_or_priceunit_', $item->get_product_id() );
$technical_specifics = get_field('technical_specifics');
$technical_spec = $technical_specifics[0];
?>
<div>
<table style="width: 100%;">
<tr>
<?php
foreach ($technical_spec['titles'] as $key => $values)
{
?>
<th><?php echo $values['title1']; ?></th>
<th><?php echo $values['title2']; ?></th>
<th><?php echo $values['title3']; ?></th>
<th><?php echo $values['title4']; ?></th>
<th><?php echo $values['title5']; ?></th>
<th><?php echo $values['title6']; ?></th>
<?php
}
?>
</tr>
<?php
foreach ($technical_spec['values'] as $key => $value)
{
?>
<tr>
<td><?php echo $value['value1']; ?></td>
<td><?php echo $value['value2']; ?></td>
<td><?php echo $value['value3']; ?></td>
<td><?php echo $value['value4']; ?></td>
<td><?php echo $value['value5']; ?></td>
<td><?php echo $value['value6']; ?></td>
</tr>
<?php
}
?>
</table>
</div>
<?php
}
function sds_callback(){
// The new tab content
$sds = get_field('sds');
if(isset($sds[0]))
{
?>
<div class="sds-spec">
<ul class="list">
<?php
foreach ($sds as $key => $value)
{
?>
<li>
Download <?php echo $value['file_name']; ?>
</li>
<?php
}
?>
</ul>
</div>
<?php
}
}
function tds_callback(){
// The new tab content
$tds = get_field('tds');
if(isset($tds[0]))
{
?>
<div class="sds-spec">
<ul class="list">
<?php
foreach ($tds as $key => $value)
{
?>
<li>
Download <?php echo $value['file_name']; ?>
</li>
<?php
}
?>
</ul>
</div>
<?php
}
}
This is the PHP code generated by my ACF fields.
if( function_exists('acf_add_local_field_group') ):
acf_add_local_field_group(array(
'key' => 'group_5e326b8892b0f',
'title' => 'Product Technical Specifics',
'fields' => array(
array(
'key' => 'field_5e326be12fa37',
'label' => 'Technical Specifics',
'name' => 'technical_specifics',
'type' => 'repeater',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'collapsed' => '',
'min' => 1,
'max' => 1,
'layout' => 'block',
'button_label' => '',
'sub_fields' => array(
array(
'key' => 'field_5e326c132fa38',
'label' => 'Titles',
'name' => 'titles',
'type' => 'repeater',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'collapsed' => '',
'min' => 1,
'max' => 1,
'layout' => 'table',
'button_label' => '',
'sub_fields' => array(
array(
'key' => 'field_5e4a7d6ed08c1',
'label' => 'Title1',
'name' => 'title1',
'type' => 'text',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'default_value' => '',
'placeholder' => '',
'prepend' => '',
'append' => '',
'maxlength' => '',
),
array(
'key' => 'field_5e4a81283bc92',
'label' => 'Title2',
'name' => 'title2',
'type' => 'text',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'default_value' => '',
'placeholder' => '',
'prepend' => '',
'append' => '',
'maxlength' => '',
),
array(
'key' => 'field_5e4a81323bc93',
'label' => 'Title3',
'name' => 'title3',
'type' => 'text',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'default_value' => '',
'placeholder' => '',
'prepend' => '',
'append' => '',
'maxlength' => '',
),
array(
'key' => 'field_5e4a813c3bc94',
'label' => 'Title4',
'name' => 'title4',
'type' => 'text',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'default_value' => '',
'placeholder' => '',
'prepend' => '',
'append' => '',
'maxlength' => '',
),
array(
'key' => 'field_5e4a81463bc95',
'label' => 'Title5',
'name' => 'title5',
'type' => 'text',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'default_value' => '',
'placeholder' => '',
'prepend' => '',
'append' => '',
'maxlength' => '',
),
array(
'key' => 'field_5e4a81533bc96',
'label' => 'Title6',
'name' => 'title6',
'type' => 'text',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'default_value' => '',
'placeholder' => '',
'prepend' => '',
'append' => '',
'maxlength' => '',
),
),
),
array(
'key' => 'field_5e326c642fa39',
'label' => 'Values',
'name' => 'values',
'type' => 'repeater',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'collapsed' => '',
'min' => 1,
'max' => 0,
'layout' => 'table',
'button_label' => '',
'sub_fields' => array(
array(
'key' => 'field_5e4a80478bb97',
'label' => 'Value1',
'name' => 'value1',
'type' => 'text',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'default_value' => '',
'placeholder' => '',
'prepend' => '',
'append' => '',
'maxlength' => '',
),
array(
'key' => 'field_5e4a80598bb98',
'label' => 'Value2',
'name' => 'value2',
'type' => 'text',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'default_value' => '',
'placeholder' => '',
'prepend' => '',
'append' => '',
'maxlength' => '',
),
array(
'key' => 'field_5e4a80658bb99',
'label' => 'Value3',
'name' => 'value3',
'type' => 'text',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'default_value' => '',
'placeholder' => '',
'prepend' => '',
'append' => '',
'maxlength' => '',
),
array(
'key' => 'field_5e4a80718bb9a',
'label' => 'Value4',
'name' => 'value4',
'type' => 'text',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'default_value' => '',
'placeholder' => '',
'prepend' => '',
'append' => '',
'maxlength' => '',
),
array(
'key' => 'field_5e4a807c8bb9b',
'label' => 'Value5',
'name' => 'value5',
'type' => 'text',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'default_value' => '',
'placeholder' => '',
'prepend' => '',
'append' => '',
'maxlength' => '',
),
array(
'key' => 'field_5e4a808b8bb9c',
'label' => 'Value6',
'name' => 'value6',
'type' => 'text',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'default_value' => '',
'placeholder' => '',
'prepend' => '',
'append' => '',
'maxlength' => '',
),
),
),
),
),
array(
'key' => 'field_5f2a9e5a6ec81',
'label' => 'SDS',
'name' => 'sds',
'type' => 'repeater',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'collapsed' => '',
'min' => 0,
'max' => 0,
'layout' => 'table',
'button_label' => '',
'sub_fields' => array(
array(
'key' => 'field_5f2a9e726ec82',
'label' => 'File Name',
'name' => 'file_name',
'type' => 'text',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'default_value' => '',
'placeholder' => '',
'prepend' => '',
'append' => '',
'maxlength' => '',
),
array(
'key' => 'field_5f2a9e776ec83',
'label' => 'Pdf File',
'name' => 'pdf_file',
'type' => 'file',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'return_format' => 'url',
'library' => 'all',
'min_size' => '',
'max_size' => '',
'mime_types' => '',
),
),
),
array(
'key' => 'field_5f2a9e906ec84',
'label' => 'TDS',
'name' => 'tds',
'type' => 'repeater',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'collapsed' => '',
'min' => 0,
'max' => 0,
'layout' => 'table',
'button_label' => '',
'sub_fields' => array(
array(
'key' => 'field_5f2a9e906ec85',
'label' => 'File Name',
'name' => 'file_name',
'type' => 'text',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'default_value' => '',
'placeholder' => '',
'prepend' => '',
'append' => '',
'maxlength' => '',
),
array(
'key' => 'field_5f2a9e906ec86',
'label' => 'Pdf File',
'name' => 'pdf_file',
'type' => 'file',
'instructions' => '',
'required' => 0,
'conditional_logic' => 0,
'wrapper' => array(
'width' => '',
'class' => '',
'id' => '',
),
'return_format' => 'url',
'library' => 'all',
'min_size' => '',
'max_size' => '',
'mime_types' => '',
),
),
),
),
'location' => array(
array(
array(
'param' => 'post_type',
'operator' => '==',
'value' => 'product',
),
),
),
'menu_order' => 0,
'position' => 'normal',
'style' => 'default',
'label_placement' => 'top',
'instruction_placement' => 'label',
'hide_on_screen' => '',
'active' => true,
'description' => '',
'show_in_rest' => false,
));
endif;

Answer 1

Based on how you describe your repeater fields & the code you've given, it sounds like you might be accessing them incorrectly.
I'll put what I believe the code needs to be to access the values correctly below, however, for debugging sake, in the "technical_specifics_callback" function, could you try var_dump the following variables (per_unit_or_square, technical_specifics & technical_spec) and see if they return values?
From my understanding, I suspect that you either need to add the post id to the get_field('technical_specifics') call. Or the foreach call needs to be updated to work with how repeaters work (code example below).
<?php
<?php
function technical_specifics_callback() {
$per_unit_or_square = get_field( 'pricem2_or_priceunit_', $item->get_product_id() );
$technical_specifics = get_field('technical_specifics');
$title_row = "";
$values_row = "";
foreach( $technical_specifics as $item ) {
$title_row .= "<th>" . $item["title"] . "</th>";
$values_row .= "<td>" . $item["values"] . "</td>";
}
?>
<div>
<table style="width: 100%;">
<tr><?php echo $title_row;?></tr>
<tr><?php echo $values_row;?></tr>
</table>
</div>
<?php
}