Logical operator _php Tutorial

Source: Internet
Author: User
Tags logical operators
Table 7-3. Logical Operators (table 7-3 logical operators)
 
Example name result?/font>
$a and $b and true of both $a and $b is true.? /FONT>
$a or $b or?/font> true if either $a or $b is true.? /FONT>
$a xor $b or?/font> true if either $a Or $b is true, and not both.? /FONT>
! $a not?/font> True if $a is not True.? /FONT>
$a && $b and?/font> true of both $a and $b is true.? /FONT>
$a | | $b or?/font> True if either $a Or $b is true.
The changes in the two different "and" and "or" operators are actually caused by the different priority levels of the operation. (Refer to the following section.) )

http://www.bkjia.com/PHPjc/531974.html www.bkjia.com true http://www.bkjia.com/PHPjc/531974.html techarticle Table 7-3. Logical Operators (table 7-3 logical operator) example name result?/font> $a and $b and true of both $a and $b is true. /FONT> $a or $b or?/font> True if either $a or $b ...

  • 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: info-contact@alibabacloud.com 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.