Operators in PHP

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Operators in PHP

Operators is a symbol which is used to perform operations on operands. Here you can see very simple example of operator



In the above example, + is the binary + operator, 4 and 5 are operands and $num is variable.

PHP divides the operators in the following groups:

  • Arithmetic Operators
  • Comparison Operators
  • Bitwise Operators
  • Logical Operators
  • String Operators
  • Incrementing/Decrementing Operators
  • Array Operators
  • Assignment Operators

Operators in php

OperatorsAdditional InformationAssociativity
clone newclone and newnon-associative
++ -- ~ (int) (float) (string) (array) (object) (bool) @increment/decrement and typesright
!logical (negation)right
* / %arithmeticleft
+ - .arithmetic and string concatenationleft
<< >>bitwise (shift)left
< <= > >=comparisonnon-associative
== != === !== <>comparisonnon-associative
&bitwise ANDleft
^bitwise XORleft
|bitwise ORleft
&&logical ANDleft
||logical ORleft
= += -= *= **= /= .= %= &= |= ^= <<= >>= =>assignmentright
,many uses (comma)left

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Path variable is set for providing path for all Java tools like java, javac, javap, javah, jar, appletviewer which are used in java programming. All these tools are available in bin folders so we set path upto bin folders.

Classpath variable is set for providing a path for predefined Java classes which is used in our application. All classes are available in lib/rt.jar so we set classpath upto lib/rt.jar.

Cloud computing is the on demand availability of computer system resources, especially data storage and computing power, without direct active management by the user.

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