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There’s no exact function to prepend a string in PHP. But PHP concatenation operator (.) is used to returns the concatenation of its left and right arguments.

There are two string operators :

  • Concatenation operator (‘.’) – Concatenation of str1 and str2

Example: $str1 . $str2

  • Concatenating assignment operator (‘.=’) – Appends the str2 to the str1

Example:  $str1 .= $str2

<?php$str1 = "PHP";$str2 = "Tutorials!";$str2 = $str1 . " " . $str2;echo $str2; // Outputs: PHP Tutorials!?>
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