update : 2015.11.03
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Scans the buffer for an occurrence of a string

EventBuffer::search

(PECL event >= 1.2.6-beta)

EventBuffer::searchScans the buffer for an occurrence of a string

설명

public mixed EventBuffer::search ( string $what [, int $start = -1 [, int $end = -1 ]] )

Scans the buffer for an occurrence of the string what . It returns numeric position of the string, or FALSE if the string was not found.

If the start argument is provided, it points to the position at which the search should begin; otherwise, the search is performed from the start of the string. If end argument provided, the search is performed between start and end buffer positions.

인수

what

String to search.

start

Start search position.

end

End search position.

반환값

Returns numeric position of the first occurance of the string in the buffer, or FALSE if string is not found.

Warning

이 함수는 논리 FALSE를 반환하지만, 논리 FALSE로 취급할 수 있는 다른 값을 반환할 수 있습니다. 자세한 정보는 논리형 섹션을 참고하십시오. 이 함수의 반환값을 확인하려면 === 연산자를 이용하십시오.

예제

Example #1 EventBuffer::search() example

<?php
// Count total occurances of 'str' in 'buf'
function count_instances($buf$str) {
    
$total 0;
    
$p     0;
    
$i     0;

    while (
1) {
        
$p $buf->search($str$p);
        if (
$p === FALSE) {
            break;
        }
        ++
$total;
        ++
$p;
    }

    return 
$total;
}

$buf = new EventBuffer();
$buf->add("Some string within a string inside another string");
var_dump(count_instances($buf"str"));
?>

위 예제의 출력 예시:

int(3)

참고