Php determines that the string contains the specified character-PHP source code

Source: Internet
Author: User
Tags ereg
The following is the php code that uses a regular expression to determine whether a string contains a specified character. The ereg function is used to calculate the following. The regular expression is used to determine the php code of a string containing the specified character, mainly used the ereg function to sign

Script ec (2); script

// Instance 1

The Code is as follows:
$ String = "I am abc ";
If (ereg ("", $ string) echo "'abc' is true

If (ereg ("^ abc", $ string) echo "'^ abc' is true

If (ereg ("abc $", $ string) echo "'abc $ 'is true ";

// Instance 2

The Code is as follows:
$ String = "this is a test. that is another test .";
Echo ereg_replace ("is", "was", $ string )."

Echo ereg_replace ("is ","Is", $ String )."

Echo ereg_replace ("test", "test", $ string );

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.