Php7.1致命錯誤：[]運算符不支持字符串

Question

我建立了一些功能主題選項wordpress。

但現在我收到以下錯誤，我究竟做錯了什麼？

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

什麼我漏掉的代碼？

Answer 1

你可能在某處所以現在重新初始化使用這個變量作爲$w_custom_font1_src作爲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')";