{"id":11445,"date":"2024-03-14T14:06:23","date_gmt":"2024-03-14T14:06:23","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-the-php-rtrim-function\/"},"modified":"2025-08-04T12:00:28","modified_gmt":"2025-08-04T12:00:28","slug":"what-is-the-usage-of-the-php-rtrim-function","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-the-php-rtrim-function\/","title":{"rendered":"PHP rtrim() Function Explained"},"content":{"rendered":"

The rtrim() function is used to remove whitespace or other specified characters from the end of a string.<\/p>\n

string<\/span> rtrim<\/span> ( string<\/span> $str<\/span> [, string<\/span> $character_mask<\/span> ] )\r\n<\/code><\/pre>\n
Parameters:<\/p>\n
    \n
  1. str: Required. Specifies the string to be processed.<\/li>\n
  2. character_mask: Optional. Specifies the characters to be removed from the end of the string. Defaults to whitespace.<\/li>\n<\/ol>\n
    Original: \u6211\u60f3\u4e86\u89e3\u4e00\u4e0b\u8fd9\u4e2a\u4ea7\u54c1\u7684\u4ef7\u683c\u3002
    \nParaphrased: I would like to know the pricing of this product.<\/p>\n
    $str<\/span> = \"Hello World!   \"<\/span>;\r\necho<\/span> rtrim<\/span>($str<\/span>); \/\/ \u8f93\u51fa Hello World!<\/span>\r\n\r\n$str<\/span> = \"Hello World!***\"<\/span>;\r\necho<\/span> rtrim<\/span>($str<\/span>, \"*\"<\/span>); \/\/ \u8f93\u51fa Hello World!<\/span>\r\n<\/code><\/pre>\n
    In the first example, the rtrim() function removed the spaces at the end of the string. In the second example, the rtrim() function removed the asterisks at the end of the string.<\/p>\n","protected":false},"excerpt":{"rendered":"
    The rtrim() function is used to remove whitespace or other specified characters from the end of a string. string rtrim ( string $str [, string $character_mask ] ) Parameters: str: Required. Specifies the string to be processed. character_mask: Optional. Specifies the characters to be removed from the end of the string. Defaults to whitespace. Original: […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[660,663,14766,276,326],"class_list":["post-11445","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-php","tag-php-functions","tag-rtrim","tag-string-manipulation","tag-web-development"],"yoast_head":"\nPHP rtrim() Function Explained - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how the PHP rtrim() function removes whitespace from strings. 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