uncleflo
Registered since September 28th, 2017
Has a total of 4246 bookmarks.
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Tag selected: regex.
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How to use MySQL to search in php serialized fields
Saved by uncleflo on June 22nd, 2018.
Well, first rule – you should not do this. But if there is good reason, consider using such query for searching in index-based arrays: SELECT * FROM table WHERE your_field_here REGEXP '.*;s:[0-9]+:"your_value_here".*' In case you have assoc array serialized you can use: SELECT * FROM table WHERE your_field_here REGEXP '.*"array_key_here";s:[0-9]+:"your_value_here".*' Of course it won’t be very fast but in small tables should be enough
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Unicode Character Categories
Saved by uncleflo on December 27th, 2017.
Each unicode character is assigned a category. This is the complete list of categories.
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The Art of Web ~ PHP: Parsing HTML to find Links
Saved by uncleflo on February 22nd, 2015.
From blogging to log analysis and search engine optimisation (SEO) people are looking for scripts that can parse web pages and RSS feeds from other websites - to see where their traffic is coming from among other things. Parsing your own HTML should be no problem - assuming that you use consistent formatting - but once you set your sights at parsing other people's HTML the frustration really sets in. This page presents some regular expressions and a commentary that will hopefully point you in the right direction.
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Unicode Character Classes in ECMAScript Regular Expressions
Saved by uncleflo on January 20th, 2015.
ECMAScript, the standardized version of the language JavaScript, defines string values as sequences of UTF-16 code units, not as sequences of characters. This language misfeature complicates Unicode handling considerably. For characters in the Basic Multilingual Plane (BMP) a single UTF-16 code unit (one 16-bit word) suffices. For characters outside this range, two code units are necessary. As an example, the Latin letter A is both one character and one code unit: "A".length === 1, but the Unicode character U+1D400 MATHEMATICAL BOLD CAPITAL A is one character but two code units: "퐀".length === 2. A better language would hide this ugly implementation detail from users, and string attributes such as length would be in terms of characters, not code units. Unfortunately, for historical reasons, ECMAScript forces programmers who want proper Unicode support to deal with raw UTF-16 directly.
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Regex Tutorial - Unicode Characters and Properties
Saved by uncleflo on January 20th, 2015.
Unicode is a character set that aims to define all characters and glyphs from all human languages, living and dead. With more and more software being required to support multiple languages, or even just any language, Unicode has been strongly gaining popularity in recent years. Using different character sets for different languages is simply too cumbersome for programmers and users.
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JavaScript Regex :: XRegExp
Saved by uncleflo on January 20th, 2015.
XRegExp is an open source (MIT License) JavaScript library that provides augmented and extensible regular expressions. You get new syntax, flags, and methods beyond what browsers support natively. XRegExp is also a regex utility belt with tools to make your client-side grepping simpler and more powerful, while freeing you from worrying about pesky cross-browser inconsistencies and the dubious lastIndex property.
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Rubular: a Ruby regular expression editor and tester
Saved by uncleflo on December 7th, 2014.
An excellent tool to start developing and learning and checking regexes. Rubular is a Ruby-based regular expression editor. It's a handy way to test regular expressions as you write them. To start, enter a regular expression and a test string. Or you can try an example.
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Regular Expression Basic Syntax Reference
Saved by uncleflo on August 24th, 2013.
Welcome to Regular-Expressions.info, The Premier website about Regular Expressions. A regular expression (regex or regexp for short) is a special text string for describing a search pattern. You can think of regular expressions as wildcards on steroids. You are probably familiar with wildcard notations such as *.txt to find all text files in a file manager.
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regex - PHP: fastest way to check for invalid characters (all but a-z, A-Z, 0-9, #, -, ., $)? - Stack Overflow
Saved by uncleflo on February 4th, 2013.
I have to check the buffer input to a PHP socket server as fast as possible. To do so, I need to know if the input message $buffer contains any other character(s) than the following: a-z, A-Z, 0-9, #, -, . and $. I'm currently using the following ereg function, but wonder if there are ways to optimize the speed. Should I maybe use a different function, or a different regex?
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MD5 Hash for "yahoo" and its variants. Reverse look-up.
Saved by uncleflo on January 24th, 2011.
wordd.org offers the ability to find out reverse look-up salt-less md5 hashed words such as "yahoo" and a set of common variants. This is not intended as a tool to hack passwords, but to recover them from databases such as wordpress that store unsalted hashes. Got salt? Salting means prepending or appending a letter or word to a your object prior to hashing it. In theory this makes sites like this one useless, as common hashes cannout be anticipated. It is recommended that everyone salts passwords before hashing. This prevents brute-force cracking to say the least.
Regular-Expressions.info
Saved by uncleflo on January 18th, 2011.
This quick start will quickly get you up to speed with regular expressions. Obviously, this brief introduction cannot explain everything there is to know about regular expressions. For detailed information, consult the regular expression tutorial. Each topic in the quick start corresponds with a topic in the tutorial, so you can easily go back and forth between the two.
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