mb_stripos

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

mb_stripos — Finds position of first occurrence of a string within another, case insensitive

Description

mb_stripos(
string $haystack,
string $needle,
int $offset = 0,
? string $encoding = null
): int |false

mb_stripos() returns the numeric position of the first occurrence of needle in the haystack string. Unlike mb_strpos() , mb_stripos() is case-insensitive. If needle is not found, it returns false .

Parameters

haystack: The string from which to get the position of the first occurrence of needle
needle: The string to find in haystack
offset: The position in haystack to start searching. A negative offset counts from the end of the string.
encoding: The encoding parameter is the character encoding. If it is omitted or null , the internal character encoding value will be used.

Return Values

Return the numeric position of the first occurrence of needle in the haystack string, or false if needle is not found.

Errors/Exceptions

If offset is greater than the length of haystack, a ValueError will be thrown.

Changelog

Version	Description
8.0.0	`needle` now accepts an empty string.
8.0.0	`encoding` is nullable now.
7.1.0	Support for negative `offset`s has been added.

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User Contributed Notes 1 note

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FangTS_ ¶

6 years ago

How works on examples mb_stripos:

First we will watch example on symbols(..?).
<?php
$text = "Look! It's a text! Wow!"; //simple text
$spaceIsHere = mb_stripos($text," "); //you can replace " " on something what you need or want
$text2 = mb_substr($text,$spaceIsHere); //cutting text with $spaceIsHere
print ($text2); 
/* Print will show that result:
" It's a text! Wow!"
Look. That " " wasn't cutted, because mb_substr don't write in var position after " " - he write WHERE is " " in string. */
?>

Also it can work on words, sentences...
Here's one of examples:
<?php
$text = "Look! It's a text! Wow!"; //familiar text, right?)
$afterNeededWord = mb_stripos($text,"text!"); //you can replace "text!" on something else what you need
$text3 = mb_substr($text, $afterNeededWord); //cutting string (it is string? im stupid in that question xD)
print ($text3); 
/* Print will show that result:
"text! Wow!"
Explaining the same. */
?>

I hope it was useful with my "good" English skills. ;D
Have a nice day, coder.