PHP strrev() Function

The strrev() function is predefined function of PHP. It is used to reverse a string. It is one of the most basic string operations which are used by programmers and developers.

Syntax:

Parameter	Description	Required/Optional
String	Specify the string to reverse	Required

Example 1

<?php
  $var1="Hello PHP";
  echo "Your Number is:".$var1; 
  echo "<br>";
echo "By using 'strrev()' function:".strrev("$var1"); 
?> 

Output:

Your Number is:Hello PHP
By using 'strrev()' function:PHP olleH

Example 2

<?php
  $var1="Hello PHP";
  echo "Your string is:".$var1; 
  echo "<br>";
  $var2=strrev("$var1");
echo "After using 'strrev()' function:".$var2; 
  echo "<br>";
echo "Again after using 'strrev()'function:".strrev("$var2");
?>

Output:

Your string is:Hello PHP
After using 'strrev()' function:PHP olleH
Again after using 'strrev()'function:Hello PHP

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