Php string has char

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Check if String Contains a Character in PHP

This tutorial will discuss about a unique way to check if string contains a character in php.

To check if a string contains a given character or not, we can use the strpos() function. It accepts a string as the first parameter and a substring as a second parameter. Then it returns the index position of the first occurrence of the given substring in the string, whereas, if the given substring does not exist in the string that it returns false.

Now to check if a String Contains a Character, we can pass the string as the first argument and character as a second argument in the strpos() function. If return value is not false, then it means the given character exists in the string.

We have created a separate function for this,

function stringContainsChar($str, $char)

It accept a string and character as an arguments, and returns true if the given character exists in the given string.

Frequently Asked:

Let’s see the complete example,

 $strValue = "Last Train"; $char = "s"; if (stringContainsChar($strValue, $char)) < echo "The string contains the character."; >else < echo "The string does not contain the character."; >?>

The string contains the character.

Summary

We learned how to check if a string contains a character in PHP.

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Check if a string contains a character with PHP

Checking if a string contains a character could be accomplished easily with a regular expression or you can use the built-in PHP functions.

To check if a string contains a character of a specific case you can use strpos .

$haystack = 'This is my haystack that we shall check' $has_A = strpos($haystack, 'A') !== false; $has_a = strpos($haystack, 'a') !== false;

And if you happen to not care about the character’s case, you can use stripos .

$has_a = stripos($haystack, 'a') !== false;

The strpos functions return the numeric position of the character. If it can’t find the character, it will return a boolean false (hence the === ).

These functions can also work with strings of two or more character and not limited to just a single character at a time.

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About Josh

Husband. Father. Pug dad. Musician. Founder of Holiday API, Head of Engineering and Emoji Specialist at Mailshake, and author of the best damn Lorem Ipsum Library for PHP.

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Php string has char