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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                # 變量調試 [上一頁](# "上一頁")[下一頁](# "下一頁") 輸出某個變量是開發過程中經常會用到的調試方法,除了使用php內置的var_dump和print_r之外,ThinkPHP框架內置了一個對瀏覽器友好的dump方法,用于輸出變量的信息到瀏覽器查看。 ##### 用法:dump($var, $echo=true, $label=null, $strict=true) 相關參數的使用如下: | 參數 | 描述 | |-----|-----| | var(必須) | 要輸出的變量,支持所有變量類型 | | echo(可選) | 是否直接輸出,默認為true,如果為false則返回但不輸出 | | label(可選) | 變量輸出的label標識,默認為空 | | strict(可選) | 輸出變量類型,默認為true,如果為false則采用print_r輸出 | 如果echo參數為false 則返回要輸出的字符串 使用示例: ~~~ $Blog = D("Blog"); $blog = $Blog->find(3); dump($blog); ~~~ 在瀏覽器輸出的結果是: ~~~ array(12) { ["id"] => string(1) "3" ["name"] => string(0) "" ["user_id"] => string(1) "0" ["cate_id"] => string(1) "0" ["title"] => string(4) "test" ["content"] => string(4) "test" ["create_time"] => string(1) "0" ["update_time"] => string(1) "0" ["status"] => string(1) "0" ["read_count"] => string(1) "0" ["comment_count"] => string(1) "0" ["tags"] => string(0) "" } ~~~ [上一頁](# "上一頁")[下一頁](# "下一頁")
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