PHP Assignment Operators

PHP Assignment Operators

• Assignment (=)
• Addition assignment (+=)
• Subtraction assignment (-=)
• Multiplication assignment (*=)
• Division assignment (/=)
• Modulus assignment (%=)

php Assignment Operators :

Example:-

<?php

// Assignment Operations in PHP

// Addition

$x = 5;

$y = 3;

$x += $y; // Equivalent to: $x = $x + $y;

echo "Addition :  = $x\n";

// Subtraction

$x = 10;

$y = 4;

$x -= $y; // Equivalent to: $x = $x - $y;

echo "Subtraction: = $x\n";

// Multiplication

$x = 6;

$y = 2;

$x *= $y; // Equivalent to: $x = $x * $y;

echo "Multiplication : = $x\n";

// Division

$x = 16;

$y = 4;

$x /= $y; // Equivalent to: $x = $x / $y;

echo "Division : = $x\n";

// Modulus

$x = 17;

$y = 5;

$x %= $y; // Equivalent to: $x = $x % $y;

echo "Modulus : = $x\n";

// Concatenation(for strings)

$str1 = "Hello, ";

$str2 = "World!";

$str1 .= $str2; // Equivalent to: $str1 = $str1 . $str2;

echo "Concatenation : $str1\n";

?>

Assignment Operators php :

Output :-

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PHP comparison operators

 

Comparison Operators:

• Equal (==)
• Identical (===)
• Not equal (!= or <>)
• Not identical (!==)
• Greater than (>)
• Less than (<)
• Greater than or equal to (>=)
• Less than or equal to (<=)

php comparison operators 

Example :-

<?php

$a=10;

$b=5;

$c=20;

$d=20;

var_dump($a < $c); //true

echo"<br>";

var_dump($a < $b);

echo"<br>";

var_dump($a<=$c);//t

echo"<br>";

var_dump($b>$c);//f

echo "<br>";

var_dump($c>=$d);//true

echo "<br>";

var_dump($c==$d);//t

echo"<br>";

var_dump($a != $d);//t

?>

php comparison operators 

OUTPUT :-

bool(true)
bool(false)
bool(true)
bool(false)
bool(true)
bool(true)
bool(true)

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1. 1] Arithmetic Operators:

   • Addition (+)
   • Subtraction (-)
   • Multiplication (*)
   • Division (/)
   • Modulus (%)
   • Exponentiation (**)

2. 2] Assignment Operators:

   • Assignment (=)
   • Addition assignment (+=)
   • Subtraction assignment (-=)
   • Multiplication assignment (*=)
   • Division assignment (/=)
   • Modulus assignment (%=)

3. 3] Comparison Operators:

   • Equal (==)
   • Identical (===)
   • Not equal (!= or <>)
   • Not identical (!==)
   • Greater than (>)
   • Less than (<)
   • Greater than or equal to (>=)
   • Less than or equal to (<=)

4. 4] Logical Operators:

   • AND (&& or and)
   • OR (|| or or)
   • NOT (! or not)
   • XOR (exclusive OR) (xor)

5. 5] Increment/Decrement Operators:

   • Increment (++)
   • Decrement (--)

6. 6] String Operators:

   • Concatenation (.)
   • Concatenation assignment (.=)

7. 7] Array Operators:

   • Union (+)
   • Equality (==)
   • Identity (===)
   • Inequality (!= or <>)
   • Not identical (!==)

8. 8] Ternary Operator:

• Syntax :-
9. (condition) ? expression1 : expression2;

it works:

• 1] If the condition evaluates to true, the expression1 is executed.
• 2] If the condition evaluates to false, the expression2 is executed.

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