Identical to file(), except that file_get_contents() returns the file in a string. On failure, file_get_contents() will return FALSE.
file_get_contents() is the preferred way to read the contents of a file into a string. It will use memory mapping techniques if supported by your OS to enhance performance.
示範 1.Using file_get_contents() with a URI If you're opening a URI with special characters, such as spaces, you need to encode the URI with urlencode().
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備注:這個函數可安全的使用於二進位。
心得:如果 fopen wrappers 已啟動,則可藉此函數把檔名當成URL使用。參考 fopen() 有更多關於如何指定檔名的細節和附錄 L支援URL協定的列表。
備注:Context support was added with PHP 5.0.0.
切記! |
When using SSL, Microsoft IIS will violate the protocol by closing the connection without sending a close_notify indicator. PHP will report this as "SSL: Fatal Protocol Error" when you reach the end of the data. To workaround this, you should lower your error_reporting level not to include warnings. PHP 4.3.7 and higher can detect buggy IIS server software when you open the stream using the https:// wrapper and will suppress the warning for you. If you are using fsockopen() to create an ssl:// socket, you are responsible for detecting and suppressing the warning yourself. |
See also fgets(), file(), fread(), include(), and readfile().