卷曲牙括号php 8更新后的致命错误

Question

我有一个WordPress网站，可以大量使用插件，NextEnd Accialion菜单，该菜单不再维护。它仍然可以很好地适用于WordPress的每个新版本，如果可能的话，我想坚持下去。但是，当我测试站点从php 7.3到8的更新时，插件会断开。最终，我将不得不去PHP 8，所以我正在尝试为那个时候做准备。

我认为我已经找到了需要修复的内容，就像在错误日志中一样，我看到了致命错误 - “不再支持带有卷曲括号的数组和字符串偏移访问语法。”当我查看触发错误的线路时，我可以看到大多数错误的修复程序。

对于五个错误中的四个错误，这只是更改类似的问题的问题，

if ($tag{0} == $this->lessc->vPrefix)

但是

if ($tag[0] == $this->lessc->vPrefix)

对于最后一个错误，问题在此处是在Elseif行上：

protected function end() {
        if ($this->literal(';')) {
            return true;
        } elseif ($this->count == strlen($this->buffer) || $this->buffer{$this->count} == '}') {
            // if there is end of file or a closing block next then we don't need a ;
            return true;
        }
        return false;
    }

$ this-＆gt; buffer {$ this- this-＆gt; count}似乎是有问题的项目，但我在弄清楚如何更改它方面远远超出了深度。

我尝试将卷发括号更改为方形牙套，括号，双卷发括号，在每种情况下，它都会造成更多和不同的错误。

尝试方形牙套 $ this-＆gt; buffer [$ this-＆gt; count]

给我这个更为复杂和不透明的新错误：（

PHP Fatal error:  Uncaught TypeError: array_merge(): Argument #2 must be of type array, null given in /nas/content/live/stagingsitexray/wp-content/plugins/nextend-accordion-menu/nextend/parse/font.php:27\nStack trace:\n#0 /nas/content/live/stagingsitexray/wp-content/plugins/nextend-accordion-menu/nextend/parse/font.php(27): array_merge(Array, NULL)\n#1 /nas/content/live/stagingsitexray/wp-content/plugins/nextend-accordion-menu/themes/default/default/context.php(39): NextendParseFont->mixinTab('Active')\n#2 /nas/content/live/stagingsitexray/wp-content/plugins/nextend-accordion-menu/library/accordionmenu/menu.php(161): include('/nas/content/li...')\n#3 /nas/content/live/stagingsitexray/wp-content/plugins/nextend-accordion-menu/library/accordionmenu/wordpress/menu.php(67): NextendMenu->addCSS()\n#4 /nas/content/live/stagingsitexray/wp-content/plugins/nextend-accordion-menu/library/accordionmenu/menu.php(56): NextendMenuWordpress->addCSS()\n#5 /nas/content/live/stagingsitexray/wp-content/plugins/nextend-accordion-menu/widget.php(62): NextendMenu->render()\n#6 /nas/content/live/stagingsitexray/wp-includes/class-wp-widget.php(393): NextendAccordionMenuWidget->widget(Array, Array)\n#7 /nas/content/live/stagingsitexray/wp-includes/widgets.php(835): WP_Widget->display_callback(Array, Array)\n#8 /nas/content/live/stagingsitexray/wp-content/themes/customizr/sidebar-left.php(13): dynamic_sidebar('left')\n#9 /nas/content/live/stagingsitexray/wp-includes/template.php(770): require_once('/nas/content/li...')\n#10 /nas/content/live/stagingsitexray/wp-includes/template.php(716): load_template('/nas/content/li...', true, Array)\n#11 /nas/content/live/stagingsitexray/wp-includes/general-template.php(136): locate_template(Array, true, true, Array)\n#12 /nas/content/live/stagingsitexray/wp-content/themes/customizr/inc/czr-front-ccat.php(7650): get_sidebar('left')\n#13 /nas/content/live/stagingsitexray/wp-includes/class-wp-hook.php(307): CZR_sidebar->czr_fn_render_sidebar('')\n#14 /nas/content/live/stagingsitexray/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters('', Array)\n#15 /nas/content/live/stagingsitexray/wp-includes/plugin.php(476): WP_Hook->do_action(Array)\n#16 /nas/content/live/stagingsitexray/wp-content/themes/customizr/index.php(28): do_action('__before_articl...')\n#17 /nas/content/live/stagingsitexray/wp-includes/template-loader.php(106): include('/nas/content/li...')\n#18 /nas/content/live/stagingsitexray/wp-blog-header.php(19): require_once('/nas/content/li...')\n#19 /nas/content/live/stagingsitexray/index.php(17): require('/nas/content/li...')\n#20 {main}\n  thrown in /nas/content/live/stagingsitexray/wp-content/plugins/nextend-accordion-menu/nextend/parse/font.php on line 27, referer: https://stagingsitexray/wp-admin/edit.php?post_type=page

那是其他文件，而不是我当前编辑的文件，即/nas/content/live/stagingsitexray/wp-content/plugins/nextend-accordion-menu/nextend/css/css/.php

Answer 1

替换$ this-＆gt; buffer {$ this-＆gt; count} =='}'}' to str_ends_with（$ this-＆gt; buffer，'}'}'） or 代码> substr（$ this-＆gt; buffer，-1）==='}'