If the UTF-8 special characters get in the way, you can try converting the string to ASCII with iconv. this is a very incomplete implementation, see John R's reply. How can I remove special characters in a PHP string? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. What should I do? I have one xml which contain utf-8 characters but the data of this xml will get displayed on page with iso encoding. How to remove non utf-8 characters from string in php When working with faulty software it happens that the BOM part gets multiplied with every saving. OK, just to let you know preg_replace('/[\x{fffe}-\x{ffff}]/u', '', $string) did the trick. php filter non utf-8 characters - Code Examples & Solutions You can see a live copy here: http://ircb.in/jisti/ (and the template file I threw at http://ircb.in/jisti/home.html if you want to check it out), you would use the following code to remove utf8 bom, Another way to remove the BOM which is Unicode code point U+FEFF. If you want to check for a BOM, you need to use double quotes, so the \x sequences are actually interpreted into bytes: Your files also seem to contain a lot more garbage than just a single leading BOM: if anybody using csv import then below code useful. Note: And who? Corrected regexp: JF Sebastian's regex is almost perfect as far as I'm concerned. In this case, check the first 3 bytes - echoing them is not very useful because the BOM is invisible on most settings: If the line above returns TRUE for you, then a simple test may fix the problem: tested a lot and it works perfect without any issue. 1 I have a problem as below. So it may be possible to only consider case of content starting with this value, and not worry about the rest. Is it legal to not accept cash as a brick and mortar establishment in France? I didn't realise it wasn't just version numbers. So if it was intended BOM, it'd be either busted one, or decoder assumed wrong order (UTF-16 BE vs LE). To learn more, see our tips on writing great answers. One of the tricks I stumbled upon on the web was using htmlentities then stripping the encoded character : Not perfect but it does work well in some case. If you copy one of the characters (the "M" of "Montlimar" for eg.) [In this post, indicates how solve your problem][1] [1]: well exactly this code removes all characters. php - How to remove multiple UTF-8 BOM sequences - Stack Overflow Syntax htmlspecialchars_decode ( string,flags ) Parameter Values Technical Details More Examples Example Convert some predefined HTML entities to characters: <?php $str = "Jane & 'Tarzan'"; Find centralized, trusted content and collaborate around the technologies you use most. In order to give users a clear message, it seems sensible to recommend mb_convert_encoding as the primary replacement for the removed functions. The function above also implements converting to lowercase - but that's a taste. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. To learn more, see our tips on writing great answers. rev2023.7.14.43533. (0x3F), Many byte sequences do not form a valid UTF-8 string; utf8_decode handles these by silently inserting a '?' Thanks mercator, you were really helpful. remove non-alphanumeric non-whitespace chars inside words: Asking for help, clarification, or responding to other answers. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. This is a, If you don't have the multibyte extension installed, here's a function to decode UTF-16 encoded strings. In laravel you can simply use str_slug($accentedPhrase) Historical installed base figures for early lines of personal computer? Note that the iconv function on some systems may not work as you expect. As example some chars (corresponding to HTML codes „ ,   and others) are converted to "?" voku/portable-utf8: Portable UTF-8 library - GitHub Thanks for contributing an answer to Stack Overflow! It is often included for things like XML files. @Avinash: There are more character encodings and collations that need to be considered. Are high yield savings accounts as secure as money market checking accounts? IMPORTANT: when converting UTF8 data that contains the EURO sign DON'T USE utf_decode function. Relying on this function These uses can be roughly categorised as follows (some packages have uses in more than one category): The correct use of these functions is to convert specifically between Latin 1 and UTF-8. Will spinning a bullet really fast without changing its linear velocity make it do more damage? It is often included for things like XML files. PHP: Multibyte String Functions - Manual What's the significance of a C function declaration in parentheses apparently forever calling itself? Denys Fisher, of Spirograph fame, using a computer late 1976, early 1977. it's saving it as unix/utf8 -bom. However, there is a risk that the individual characters and, under certain circumstances, important information will be lost. 589). . How many witnesses testimony constitutes or transcends reasonable doubt? if I was using n++, why would it cause this? How "wide" are absorption and emission lines? This guy suggests a clever solution using htmlentities(). utf8 file shouldn't have a BOM, if your editor put those in, there should be a configuration to omit those, if your editor won't allow you to not put in BOM, replace your editor. this is the only answer that has all the accents. How "wide" are absorption and emission lines? and so on from the beginning and the end of the string. iconv() gives me a PHP "notice" when it gets the wrongly encoded string and only echoes "F", but that might just be because of different PHP/iconv settings/versions (?). At the same time, she reworded the documentation page which previously consisted mostly of a long explanation of UTF-8, and little explanation of the functions themselves. https://wiki.php.net/rfc/remove_utf8_decode_and_utf8_encode, Andrea Faulds moved them to ext/standard in PHP 7.2, specifies that browsers should treat Latin 1 as a synonym for Windows 1252, two contributors to the php-internals list, https://stackoverflow.com/a/57871683/157957, https://stackoverflow.com/a/15183803/157957, https://stackoverflow.com/q/10199017/157957, https://stackoverflow.com/q/63814648/157957, Proposed additional wording in the manual, Abandoned RFC on the same topic from 2016, Feature Request on bugs.php.net suggesting their removal, PHP RFC: Deprecate and Remove utf8_encode and utf8_decode, Adding functionality to the existing functions. If the exact functionality needs to be retained, any of the character conversion functions above will work fine. Description utf8_decode ( string $string ): string This function converts the string string from the UTF-8 encoding to ISO-8859-1. There are approx 65256 UTF-8 characters available to a web page which you cannot store in a Latin-1 code page. While the language can never protect users from all misunderstanding, it is unhelpful to include functions whose functionality could not be guessed without looking at the manual. The other methods I found cannot work in my case. WordPress' implementation is definitly the safest for UTF8 strings. However, the C1 control characters are effectively unused, so a string labelled Latin 1 but containing values in the range 0x80 to 0x9F is often assumed to actually be in Windows Code Page 1252. I think the problem here is that your encodings consider and different symbols to 'a'. EY! I curl'd the direct file (curl, if they can show up more than once, you might want to use"/^(\xEF\xBB\xBF)+/", How to remove multiple UTF-8 BOM sequences, How terrifying is giving a conference talk? I am aware of the reasons for it being chosen as BOM, and just suggested that perhaps one has leaked; if so, it has to come before any content. and it converts only accentuated things (letters/ligatures/cdilles/some letters with a line through/?). Best Solution If you have a UTF-8 string that might contain invalid characters, you can use iconvto remove those. Why is the Work on a Spring Independent of Applied Force? Find centralized, trusted content and collaborate around the technologies you use most. What is the motivation for infinity category theory? removing Invalid UTF-8 character - 0xfffe in PHP - Stack Overflow Clean the bite area and . And those algorithms apparently had been fed with UTF8-cleaned strings, so that "Per" became "Peru" instead of "Per". To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Windows-1252 features The use of these functions internally within the ext/xml extension has not been examined, and will not be changed. If you happen to have an idea to convert the UTF-8 chars whilst keeping the emojis I would be interested! UTF-8 stands for "Unicode Transformation Format - 8 bits." That's not helpful to us yet, so let's rewind to the basics. The solution below has a "SEO friendlier" version: The rationale for the above functions (which I find way inefficient - the one below is better) is that a service that shall not be named apparently ran spelling checks and keyword recognition on the URLs. The @gabo solution should work but unfortunately not for me, More: https://symfony.com/doc/current/components/string.html#slugger. Voting started 2022-04-05 18:40 UTC, and will run for two weeks, closing 2022-04-19 18:40 UTC. Is iMac FusionDrive->dual SSD migration any different from HDD->SDD upgrade from Time Machine perspective? Users would then still need to check and update every use of the functions, which would be a similar effort to switching to a new function. utf8_decode Explaining Ohm's Law and Conductivity's constance at particle level. What could be the meaning of "doctor-testing of little girls" by Steinbeck? E.g. and have them replaced with just 1? It has the glibc version instead of the required libiconv version. Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Temporary policy: Generative AI (e.g., ChatGPT) is banned. Probability Theory is Applied Measure Theory? It can be UTF-8 (more common), UTF-16, or even UTF-32. Connect and share knowledge within a single location that is structured and easy to search. Some of the clearest misuses occur when running either function on text which is guaranteed to be ASCII, so will be returned unchanged. In such case, it'd be a good idea to install the GNU libiconv library. PHP: chr - Manual data have nothig like in tabel. preg_replace to remove invalid character (allow utf-8), PHP (preg_replace) remove special character not non-english, Control two leds with only one PIC output. An exact replacement is also straight-forward to implement in pure PHP, as long as performance is not critical. Distances of Fermat point from vertices of a triangle, Sidereal time of rising and setting of the sun on the arctic circle. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Here are a few found on Stack Overflow: Removing these functions will break some code that is operating correctly. PHP: utf8_encode - Manual @trevor-gehman: strtr() only works on single-byte characters, hence those in Unicode. So you should always add a ISO-8859-1 character to your string for this check. I know it converts a string to a binary representation but struggling to understand how this helps with identifying the BOM Unicode character. Binary: How Computers Store Information In order to store information, computers use a binary system. How and when did the plasma get replaced with water? <?php // Removes BOM (Byte order mark) from file (if necessary) function bomStrip ( path, output ) { $bufsize = 65536; $utf8bom = "\\xef\\xbb\\xbf"; $inf = fopen (path, r); $outf = fopen (output,. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. to_encoding The desired encoding of the result. Not the answer you're looking for? PHP htmlspecialchars() Function - W3Schools What if I what to remove this? additional printable characters, such as the Euro sign I have one xml which contain utf-8 characters but the data of this xml will get displayed on page with iso encoding. Pros and cons of "anything-can-happen" UB versus allowing particular deviations from sequential progran execution. How and when did the plasma get replaced with water? Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Temporary policy: Generative AI (e.g., ChatGPT) is banned. Which field is more rigorous, mathematics or philosophy? How to "remove diacritics" from UTF8 characters in PHP? and replaced with appropriate alternatives. (Ep. Making statements based on opinion; back them up with references or personal experience. Again, if they did not already exist, it is unlikely we would add such narrow functions; users are better served by discovering existing general-purpose encoding functions. php - Remove or Encode Non-UTF-8 Characters - Stack Overflow Using PHP5 (cgi) to output template files from the filesystem and having issues spitting out raw HTML. UTF-8 encoding to ISO-8859-1. Why is that so many apps today require MacBook with a M1 chip? I am facing an issue with URLs, I want to be able to convert titles that could contain anything and have them stripped of all special characters so they only have letters and numbers and of course I would like to replace spaces with hyphens. While this is sometimes a useful feature, they are commonly misunderstood, for three reasons: This RFC takes the view that their inclusion under the current name does more harm than good, and that removing them will encourage users to find more appropriate functions for their use cases. Where it is used, most systems now include variant locales which use UTF-8, so setlocale(LC_ALL, 'fr_FR.UTF8'); echo strftime("%A, %d %B %Y"); will have the same result as setlocale(LC_ALL, 'fr_FR'); echo utf8_encode(strftime("%A, %d %B %Y")); The internal functions will be moved back to ext/xml, but no longer exposed as userland functions.