mb_ereg_search_getpos - Returns start point for next regular expression match.mb_ereg_replace - Replace regular expression with multibyte support.mb_ereg_replace_callback - Perform a regular expression search and replace with multibyte support using a callback.mb_ereg_match - Regular expression match for multibyte string.mb_encoding_aliases - Get aliases of a known encoding type.mb_encode_numericentity - Encode character to HTML numeric string reference.mb_encode_mimeheader - Encode string for MIME header.mb_detect_order - Set/Get character encoding detection order.mb_detect_encoding - Detect character encoding.mb_decode_numericentity - Decode HTML numeric string reference to character.mb_decode_mimeheader - Decode string in MIME header field.mb_convert_variables - Convert character code in variable(s).mb_convert_kana - Convert "kana" one from another ("zen-kaku", "han-kaku" and more).mb_convert_encoding - Convert a string from one character encoding to another.mb_convert_case - Perform case folding on a string.mb_chr - Return character by Unicode code point value. mb_check_encoding - Check if strings are valid for the specified encoding.Japanese/Korean/Chinese character information Please refer to the following URLs and other resources for further Multibyte character encoding schemes and their related issues areįairly complicated, and are beyond the scope of this documentation. Also, try using the ltrim() and rtrim() both these functions have very specific use cases.Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Predefined Attributes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search I would recommend practicing the trim() method as it can get tricky at times. There are no caveats as such while using the PHP trim() function. The output for this code snippet would be the following: e freelance developeĪs you can see the “hir” from “Hire” and the “r” from “developer” were removed. Now let’s look at a case where we pass a second argument. The output for the above code snippet would be as follows: Hire freelance developer If left empty, all the characters mentioned below would be removed.Ī modified string with whitespaces or the specified characters removed from both sides is returned. This parameter specifies the character that needs to be removed from the string. This is the string or the variable containing the string from which you want to remove whitespaces or characters. Post that we look at a code snippet using the trim() function. In this section, we look at the various syntax, parameters, and return values used in the trim() function. However, making use of just the trim() function without specifying ‘l’ or ‘r’ removes characters from both sides. Ltrim() and rtrim() are used to remove these whitespaces or other characters from the left and right sides of the string. The trim() function in PHP removes whitespace or any other predefined character from both the left and right sides of a string.
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