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

    function 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 offsets has been added.

    See Also

    • stripos() - Find the position of the first occurrence of a case-insensitive substring in a string
    • strpos() - Find the position of the first occurrence of a substring in a string
    • mb_strpos() - Find position of first occurrence of string in a string

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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.
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