Count number of characters: Difference between revisions
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== PHP == | == How to count characters with PHP == | ||
* PHP: [https://www.php.net/manual/en/function.strlen.php strlen] & [http://php.net/mb_strlen PHP mb_strlen function] | * PHP: [https://www.php.net/manual/en/function.strlen.php strlen] & [http://php.net/mb_strlen PHP mb_strlen function] | ||
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== MySQL == | == How to count characters with MySQL == | ||
* MySQL: [http://www.w3resource.com/mysql/string-functions/mysql-char_length-function.php MySQL CHAR_LENGTH() function] | * MySQL: [http://www.w3resource.com/mysql/string-functions/mysql-char_length-function.php MySQL CHAR_LENGTH() function] | ||
<PRE> | <PRE> | ||
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== SQLite == | == How to count characters with SQLite == | ||
[https://www.sqlitetutorial.net/sqlite-functions/sqlite-length/#targetText=SQLite%20Length,returns%20the%20number%20of%20bytes. Length] function | [https://www.sqlitetutorial.net/sqlite-functions/sqlite-length/#targetText=SQLite%20Length,returns%20the%20number%20of%20bytes. Length] function | ||
<PRE> | <PRE> | ||
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</PRE> | </PRE> | ||
== Excel == | == How to count characters with Excel == | ||
* Excel: [https://support.office.com/en-us/article/len-lenb-functions-29236f94-cedc-429d-affd-b5e33d2c67cb LEN, LENB functions] / [https://support.office.com/zh-tw/article/LEN%E3%80%81LENB-%E5%87%BD%E6%95%B8-29236f94-cedc-429d-affd-b5e33d2c67cb LEN、LENB 函數] {{exclaim}} Result of the function {{kbd | key=LENB}} is not the same with the result in other programming language. | * Excel: [https://support.office.com/en-us/article/len-lenb-functions-29236f94-cedc-429d-affd-b5e33d2c67cb LEN, LENB functions] / [https://support.office.com/zh-tw/article/LEN%E3%80%81LENB-%E5%87%BD%E6%95%B8-29236f94-cedc-429d-affd-b5e33d2c67cb LEN、LENB 函數] {{exclaim}} Result of the function {{kbd | key=LENB}} is not the same with the result in other programming language. | ||
<pre> | <pre> | ||
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* [https://stackoverflow.com/questions/5290182/how-many-bytes-does-one-unicode-character-take string - How many bytes does one Unicode character take? - Stack Overflow] | * [https://stackoverflow.com/questions/5290182/how-many-bytes-does-one-unicode-character-take string - How many bytes does one Unicode character take? - Stack Overflow] | ||
== BASH == | == How to count characters with BASH == | ||
Step1: Using [https://www.computerhope.com/unix/uwc.htm Linux wc command] | Step1: Using [https://www.computerhope.com/unix/uwc.htm Linux wc command] | ||
<pre> | <pre> | ||
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== Python == | == How to count characters with Python == | ||
Using the [https://docs.python.org/3/library/functions.html#len len()] function<ref>[https://stackoverflow.com/questions/30686701/python-get-size-of-string-in-bytes Python : Get size of string in bytes - Stack Overflow]</ref>. Try it on [https://replit.com/@planetoid/lenth-of-string#main.py replit]. | Using the [https://docs.python.org/3/library/functions.html#len len()] function<ref>[https://stackoverflow.com/questions/30686701/python-get-size-of-string-in-bytes Python : Get size of string in bytes - Stack Overflow]</ref>. Try it on [https://replit.com/@planetoid/lenth-of-string#main.py replit]. | ||
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== JavaScript == | == How to count characters with JavaScript == | ||
Using the [https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/length length()] function and [https://developer.mozilla.org/en-US/docs/Web/API/Blob Blob] object <ref> [https://stackoverflow.com/questions/2219526/how-many-bytes-in-a-javascript-string How many bytes in a JavaScript string? - Stack Overflow]</ref>. | Using the [https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/length length()] function and [https://developer.mozilla.org/en-US/docs/Web/API/Blob Blob] object <ref> [https://stackoverflow.com/questions/2219526/how-many-bytes-in-a-javascript-string How many bytes in a JavaScript string? - Stack Overflow]</ref>. | ||