PHP 警告：count(): 参数必须是数组或在 C:\\htdocs\my.php 中实现 Countable 的对象

Question

count(): Parameter must be an array or an object that implements Countable in C:\htdocs..\components\com_jcomments\tpl\joomspirit_theme\tpl_form.php

$customBBCodes = $this->getVar('comments-form-custombbcodes');
if (count($customBBCodes)) {
    foreach($customBBCodes as $code) {
        if ($code->button_enabled) {
            $k = 'custombbcode' . $code->id;
            $title = trim(JCommentsText::jsEscape($code->button_title));
            $text = empty($code->button_prompt) ? JText::_('BBCODE_HINT_ENTER_TEXT') : JText::_($code->button_prompt);
            $open_tag = $code->button_open_tag;
            $close_tag = $code->button_close_tag;
            $icon = $code->button_image;
            $css = $code->button_css;
        }
    }
}

我在我的 Joomla 3.0 应用程序中运行这个脚本，在 Apache 上 PHP7.3。

Answer 1

必须添加
if(is_array($customBBCodes)){

全部改为

   `$customBBCodes = $this->getVar('comments-form-custombbcodes');
    if(is_array($customBBCodes)){
        if (count($customBBCodes)) {
            foreach($customBBCodes as $code) {
                if ($code->button_enabled) {
                    $k = 'custombbcode' . $code->id;
                    $title = trim(JCommentsText::jsEscape($code->button_title));
                    $text = empty($code->button_prompt) ? JText::_('BBCODE_HINT_ENTER_TEXT') : JText::_($code->button_prompt);
                    $open_tag = $code->button_open_tag;
                    $close_tag = $code->button_close_tag;
                    $icon = $code->button_image;
                    $css = $code->button_css;`

PHP 警告：count(): 参数必须是数组或在 C:\\htdocs\my.php 中实现 Countable 的对象

PHP Warning: count(): Parameter must be an array or an object that implements Countable in C:\\htdocs\my.php

php

joomla3.0

countable