PHP Assignment Operators
Assignment operators allow writing a value to a variable. The first operand must be a variable and the basic assignment operator is "=". The value of an assignment expression is the final value assigned to the variable. In addition to the regular assignment operator "=", several other assignment operators are composites of an operator followed by an equal sign.
Interestingly all five arithmetic operators have corresponding assignment operators, Here is the list.
The following table discussed more details of the said assignment operators.
|$a+= $b||$a = $a + $b||Adds 2 numbers and assigns the result to the first.|
|$a-= $b||$a = $a -$b||Subtracts 2 numbers and assigns the result to the first.|
|$a*= $b||$a = $a*$b||Multiplies 2 numbers and assigns the result to the first.|
|$a/= $b||$a = $a/$b||Divides 2 numbers and assigns the result to the first.|
|$a%= $b||$a = $a%$b||Computes the modulus of 2 numbers and assigns the result to the first.|
<?php $x1=100; $x2=200; $x3=300; $x4=400; $x5=500; $x1+= 100; echo " $x1 <br />"; $x2-= 200; echo " $x2 <br />"; $x3*= 300; echo " $x3 <br />"; $x4/= 400; echo " $x4 <br />"; $x5%= 500; echo " $x5 <br />"; $x=($y=11)+9; echo " Value of x & y is : $x $y <br />"; ?>
200 0 90000 1 0 Value of x & y is : 20 11
PHP: Tips of the Day
PHP: Remove first 4 characters of a string with PHP
You could use the substr function to return a substring starting from the 5th character:
$str = "The quick brown fox jumps over the lazy dog." $str2 = substr($str, 4); // "quick brown fox jumps over the lazy dog."
Ref : https://bit.ly/2LJDLQx
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