问警告:中的字符串偏移量‘’非法

EN

我要买一台Warning: Illegal string offset 'customitem_id' in admin/controller/sale/customer.php

和/admin/controller/sale/customer.php on line 941Notice: Uninitialized string offset: 0

我正在尝试在列表中显示所有关联的自定义产品，我不确定此错误意味着什么。这是代码，如果我没有foreach循环，但只显示了一个产品，它就可以工作。我需要其他5个分配的产品也出现。

` //自定义物料分配给客户

    if (isset($this->request->post['customitem_id'])) {
        $data['customitem_id'] = $this->request->post['customitem_id'];
    } elseif (!empty($customer_info)) {
        $data['customitem_id'] = $customer_info['customitem_id'];
    } else {
        $data['customitem_id'] = 0;
    }
        $data['product_relateds'] = array();
        if(isset($data['customitem_id'])) {
        $related_infos = $this->model_sale_customer->getProduct($data['customitem_id']); 

        foreach($related_infos as $related_info) {
            $data['product_relateds'][] = array(
                'customitem_id' => $related_info['customitem_id'],
                'name'       => $related_info['name']
            );
          }             
       }

任何帮助都将不胜感激。

tpl文件中的其他代码如下所示

$('input[name=\'related\']').autocomplete({ 'source': function(request, response) { $.ajax({ url: 'index.php?route=catalog/customitems/autocomplete&token=<?php echo $token; ?>&filter_name=' + encodeURIComponent(request), dataType: 'json',

         `success: function(json) {                 response($.map(json, function(item) {                     return {                         label: item['name'],                         value: item['customitem_id']                     }                 }));             }         });     },     'select': function(item) {         $('input[name=\'related\']').val('');`

    $('#product-related' + item['value']).remove();

    $('#product-related').append('<div id="product-related' + item['value'] + '"><i class="fa fa-minus-circle"></i> ' + item['label'] + '<input type="hidden" name="customitem_id[]" value="' + item['value'] + '" /></div>')`

和

<div class="form-group"> <label class="col-sm-2 control-label" for="input-related"><span data-toggle="tooltip" title="<?php echo $help_related; ?>"><?php echo $entry_addcustomitem; ?></span></label> <div class="col-sm-10"> <input type="text" name="related" value="" placeholder="<?php echo $entry_addcustomitem; ?>" id="input-related" class="form-control" /> <div id="product-related" class="well well-sm" style="height: 150px; overflow: auto;"> <?php foreach ($product_relateds as $product_related) { ?> <div id="product-related<?php echo $product_related['customitem_id']; ?>"><i class="fa fa-minus-circle"></i> <?php echo $product_related['name']; ?> <input type="hidden" name="customitem_id[]" value="<?php echo $product_related['customitem_id']; ?>" /> </div> <?php } ?> </div> </div> </div>