str_contains

(PHP 8)

str_containsDetermine if a string contains a given substring

Description

str_contains(string $haystack, string $needle): bool

Performs a case-sensitive check indicating if needle is contained in haystack.

Parameters

haystack

The string to search in.

needle

The substring to search for in the haystack.

Return Values

Returns true if needle is in haystack, false otherwise.

Examples

Example #1 Using the empty string ''

<?php
if (str_contains('abc''')) {
    echo 
"Checking the existence of the empty string will always return true";
}
?>

The above example will output:

Checking the existence of the empty string will always return true

Example #2 Showing case-sensitivity

<?php
$string 
'The lazy fox jumped over the fence';

if (
str_contains($string'lazy')) {
    echo 
"The string 'lazy' was found in the string\n";
}

if (
str_contains($string'Lazy')) {
    echo 
'The string "Lazy" was found in the string';
} else {
    echo 
'"Lazy" was not found because the case does not match';
}

?>

The above example will output:

The string 'lazy' was found in the string
"Lazy" was not found because the case does not match

Notes

Note: This function is binary-safe.

See Also

  • str_ends_with() - Checks if a string ends with a given substring
  • str_starts_with() - Checks if a string starts with a given substring
  • stripos() - Find the position of the first occurrence of a case-insensitive substring in a string
  • strrpos() - Find the position of the last occurrence of a substring in a string
  • strripos() - Find the position of the last occurrence of a case-insensitive substring in a string
  • strstr() - Find the first occurrence of a string
  • strpbrk() - Search a string for any of a set of characters
  • substr() - Return part of a string
  • preg_match() - Perform a regular expression match

Here you can write a comment


Please enter at least 10 characters.
Loading... Please wait.
* Pflichtangabe
There are no comments available yet.

Definition of stored procedures - an introduction

Stored procedures are predefined SQL code blocks that are stored in a database and can be called up as required. ...

Bernie

Autor : ebiz-consult GmbH & Co. KG
Category: mySQL-Tutorials

How to effectively perform complex queries with SQL queries in MySQLi?

This MySQL tutorial explains how to efficiently perform complex SQL queries in MySQLi. We will look at various aspects of database querying and learn specific methods to fully utilise the power of MySQLi. ...

TheMax

Autor : TheMax
Category: mySQL-Tutorials

New functions in PhpStorm 2024.1 for PHP developers

PhpStorm 2024.1 offers a wide range of new features that will make the heart of every PHP developer beat faster. ...

admin

Autor : admin
Category: Software-Updates

Publish a tutorial

Share your knowledge with other developers worldwide

Share your knowledge with other developers worldwide

You are a professional in your field and want to share your knowledge, then sign up now and share it with our PHP community

learn more

Publish a tutorial