Php7.1致命错误：[]运算符不支持字符串

Question

我建立了一些功能主题选项wordpress。

但现在我收到以下错误，我究竟做错了什么？

if(isset($thm_options['custom_font1_eot'])) 
    $w_custom_font1_src[] = "url('{$thm_options['custom_font1_eot']['url']}?#iefix') format('embedded-opentype')"; 

    if(isset($thm_options['custom_font1_woff'])) 
    $w_custom_font1_src[] = "url('{$thm_options['custom_font1_woff']['url']}') format('woff')"; 

    if(isset($thm_options['custom_font1_ttf'])) 
    $w_custom_font1_src[] = "url('{$thm_options['custom_font1_ttf']['url']}') format('truetype')"; 

Fatal error: [] operator not supported for strings in

什么我漏掉的代码？

Answer 1

你可能在某处所以现在重新初始化使用这个变量作为$w_custom_font1_src作为string的array

$w_custom_font1_src = array(); 

if(isset($thm_options['custom_font1_eot'])) 
    $w_custom_font1_src[] = "url('{$thm_options['custom_font1_eot']['url']}?#iefix') format('embedded-opentype')"; 

    if(isset($thm_options['custom_font1_woff'])) 
    $w_custom_font1_src[] = "url('{$thm_options['custom_font1_woff']['url']}') format('woff')"; 

    if(isset($thm_options['custom_font1_ttf'])) 
    $w_custom_font1_src[] = "url('{$thm_options['custom_font1_ttf']['url']}') format('truetype')";