grapheme_stristr - PHP code example

PHP Function GraphemeString

A function is a piece of code that can be called by an outside application. When called, the function is executed and a result is returned. A function can take arguments and work with variable data. Functions are very useful as they allow us to write reusable code. Functions in PHP can be created anonymously or by using a class definition. They can be passed by reference or by value. Passing a variable by reference adds a new entry to the symbol table of an internal data structure representing the variable type and value. This scopes the variable inside and outside the function.

In this article we will be looking at a very simple php function called grapheme_stristr. This is a binary safe function that allows you to search for a string in another string in a case insensitive manner.

string = str(input()) haystack=string needle=string search=0 before_search=false for i in range(len(haystack)): if haystack[i]==needle: search=1 else: break if search==0: return (string+haystack[-1]) if before_search==true: return (string+haystack[:before_search])

grapheme_stristr example

if (!defined('GRAPHEME_EXTR_MAXCHARS')) {
    define('GRAPHEME_EXTR_MAXCHARS', 2);
}

if (!function_exists('grapheme_extract')) {
    function grapheme_extract(?string $haystack, ?int $size, ?int $type = GRAPHEME_EXTR_COUNT, ?int $offset = 0, &$next = null): string|false { return p\Grapheme::grapheme_extract((string) $haystack, (int) $size, (int) $type, (int) $offset, $next); }
}
if (!function_exists('grapheme_stripos')) {
    function grapheme_stripos(?string $haystack, ?string $needle, ?int $offset = 0): int|false { return p\Grapheme::grapheme_stripos((string) $haystack, (string) $needle, (int) $offset); }
}
if (!function_exists('grapheme_stristr')) {
    function grapheme_stristr(?string $haystack, ?string $needle, ?bool $beforeNeedle = false): string|false { return p\Grapheme::grapheme_stristr((string) $haystack, (string) $needle, (bool) $beforeNeedle); }
}
if (!function_exists('grapheme_strlen')) {
    function grapheme_strlen(?string $string): int|false|null { return p\Grapheme::grapheme_strlen((string) $string); }
}
if (!function_exists('grapheme_strpos')) {
    function grapheme_strpos(?string $haystack, ?string $needle, ?int $offset = 0): int|false { return p\Grapheme::grapheme_strpos((string) $haystack, (string) $needle, (int) $offset); }
}
if (!function_exists('grapheme_strripos')) {
    function grapheme_strripos(?string $haystack, ?string $needle, ?int $offset = 0): int|false { return p\Grapheme::grapheme_strripos((string) $haystack, (string) $needle, (int) $offset); }
}
if (!function_exists('grapheme_strrpos')) {

if (!defined('GRAPHEME_EXTR_MAXCHARS')) {
    define('GRAPHEME_EXTR_MAXCHARS', 2);
}

if (!function_exists('grapheme_extract')) {
    function grapheme_extract($haystack, $size, $type = 0, $start = 0, &$next = 0) { return p\Grapheme::grapheme_extract($haystack, $size, $type, $start, $next); }
}
if (!function_exists('grapheme_stripos')) {
    function grapheme_stripos($haystack, $needle, $offset = 0) { return p\Grapheme::grapheme_stripos($haystack, $needle, $offset); }
}
if (!function_exists('grapheme_stristr')) {
    function grapheme_stristr($haystack, $needle, $beforeNeedle = false) { return p\Grapheme::grapheme_stristr($haystack, $needle, $beforeNeedle); }
}
if (!function_exists('grapheme_strlen')) {
    function grapheme_strlen($input) { return p\Grapheme::grapheme_strlen($input); }
}
if (!function_exists('grapheme_strpos')) {
    function grapheme_strpos($haystack, $needle, $offset = 0) { return p\Grapheme::grapheme_strpos($haystack, $needle, $offset); }
}
if (!function_exists('grapheme_strripos')) {
    function grapheme_strripos($haystack, $needle, $offset = 0) { return p\Grapheme::grapheme_strripos($haystack, $needle, $offset); }
}
if (!function_exists('grapheme_strrpos')) {