Recommended articles about PHP special characters

There have been many symbols of regular expressions before, this article will give you a summary of all the common symbols. All symbols explain the character description \ marks the next character as a special character, or a literal character, or a backward reference, or an octal escape character. For example, ' n ' matches the character "n". ' \ n ' matches a line break. The sequence ' \ \ ' matches "\" and "\ (" Matches "(". ^ matches the starting position of the input string. If the Multiline property of the RegExp object is set, ^ also matches the position after ' \ n ' or ' \ R '. $ matches the end position of the input string. If the Multiline property of the RegExp object is set, $ also matches the position before ' \ n ' or ' \ R '. * &

1. Recommended 10 content for escape character use

Introduction: There have been a lot of regular expression symbols, this article will give you a summary of all the common symbols. All symbols interpret characters     Description    \     marks the next character as a special character, or a literal character, or a backward reference, or an octal escape. For example, ' n ' matches the character "n". ' \ n ' matches a line break. The sequence ' \ \ ' matches "\" and "\ (" Matches "(".   ...

2. Recommended 10 articles for the PHP trim () function

Summary: The string function trim () is to remove whitespace characters on either side of the string or other predefined characters, which is very important in our program development, this article on the mobile phone a few about the PHP string function trim () Usage Summary, I hope you understand the trim () function to help, come together to see it. 1. The PHP function trim () that removes the string's leading and trailing spaces and special characters, usually makes it possible to enter data in a user form or other text box, accidentally entering a space or other special characters, and so on. In some cases, the string is not allowed to appear ...

3. About the problems encountered in installing and using Oracle database on Windows

Summary: Oracle software is free of charge and can be downloaded to the official website to download the appropriate installation package. However, if commercial use is required to purchase license. Official online for various platforms, both 32-bit and 64-bit, if Windows is generally downloaded to two files. In Oracle 11g, for example, there are two zip compressed files, note that the contents of the two compressed files are extracted and merged before installation. The installation prompt monitor configuration must display at least 256 colors that can be ignored. Other pre-installation check, may be flash back, for some reason, can only replace the operating system. Note The installation directory may not be a directory name with spaces or special characters, such as C:\Oracle\. I am currently in Server 2008

4. Encoding for HTML characters

Introduction: This article shows you the encoding of the HTML special characters, hoping to help you with your learning.

5. Special characters, general symbols and their code comparison table

Introduction: Special characters, general symbols and their code comparison tables

6. mysql search matching with regular Expressions Tutorial (iii)

Summary: Match a special character regular the expression language consists of special characters with specific meanings. We have seen., [], | and-and so on, there are some other characters. Excuse me, if you need to match these characters, what should you do? For example, if you want to find the value that contains the. character, how do you search? Take a look at the following example: Enter:

7. Using wildcard characters in MySQL for filtering tutorials

Introduction: What is a wildcard character? A wildcard is a special character that is used to match a portion of a value. Search mode: A search condition consisting of a literal value, a wildcard character, or a combination of both.

8. PHP removes 4 cases of space and special characters from text

Summary: In daily development, when dealing with some submissions, it is often necessary to consider the gaps in the content. This can cause problems for the program if the data being submitted is blank. For example, when the user fills in the mailbox, at the end or the beginning of the time accidentally added space, then will cause the user to submit the e-mail is not correct, then in order to avoid this situation, we will be submitted by users of the data will be removed. In this chapter, we will introduce several ways of how to remove the space?

9. Interpretation of all symbols in regular expressions

Introduction: There have been a lot of regular expression symbols, this article will give you a summary of all the common symbols. All symbols explain the character description \ marks the next character as a special character, or a literal character, or a backward reference, or an octal escape character. For example, ' n ' matches the character "n". ' \ n ' matches a line break. The sequence ' \ \ ' matches "\" and "\ (" Matches "(".

10. nonprinting characters, special characters, qualifier instance usage (regular expression character set 2)

Summary: nonprinting character meaning \cx matches the control character indicated by X. For example, \cm matches a control-m or carriage return. The value of x must be one of a-Z or a-Z. Otherwise, c is treated as a literal ' C ' character. \f matches a page break. Equivalent to \x0c and \CL. \ n matches a line break. Equivalent to \x0a and \CJ.

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