PHP quotemeta Function | Quote Meta Characters

The PHP quotemeta is an inbuilt function in PHP. It accepts a string as an input and returns a string with a backslash in front of some characters. In this article, we will discuss the PHP quotemeta Function. Also, we will discuss a few examples of using it.

The pre-defined characters are:

  • period (.)
  • backslash (\)
  • plus sign (+)
  • asterisk (*)
  • question mark (?)
  • brackets ([])
  • caret (^)
  • dollar sign ($)
  • parenthesis (())




The function accepts only one parameter. The string in which we need to add backslash characters is input to the function.

Return Value

The PHP quotemeta Function returns a string after quoting all metacharacters with a backslash (\).

PHP quotemeta Function


Let’s discuss a few examples of using the function.

Example 1: When String Contains Dollar ($), Question Mark (?), and Period (.)

For instance, consider an example with a string containing Dollar ($), Question Mark (?), and Period (.).

	$string = 'The $ Value of INR is? Answer.';
	echo quotemeta($string);;


The function adds a backslash in front of all the pre-defined characters.

The \$ Value of INR is\? Answer\.

Example 2: When String Contains Parenthesis (()), and Brackets ([])

Similarly, the function adds backslashes in front of parenthesis and brackets.

	$string = 'Cat [Meow], Dog (Bark)';
	echo quotemeta($string);;

Cat \[Meow\], Dog \(Bark\)

Example 3: When the String Contains Asterisk (*), and Plus Sign (+)

Similarly, we can pass a string containing Asterisk (*), and Plus Sign (+).

	$string = '1 + (2*2) = 5';
	echo quotemeta($string);;

1 \+ \(2\*2\) = 5


In conclusion, we discussed the PHP quotemeta Function. You can read more about it on the Official PHP Documentation. Additionally, you can read about more PHP String Functions on Concatly.

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