Şunu aradınız:: parallel (Korece - İngilizce)

php 4: locking을 피한다. (might break parallel builds)
include experimental php streams.

ptp (parallel track path)와 otp (opposite track path) 중에서 선택
choose between parallel track path (ptp) and opposite track path (otp)

아래의 예제 스크립트는 api의 parallel searching을 보여준다. 독립변수 업시 불러낼때 query form을 출력하고 그렇지 않은경우(독립변수가 주어질때) 주어진 배열에서 targets을 찾아낸다
when invoked with no arguments it prints a query form; else (arguments are supplied) it searches the targets as given in array host.

usually when using two or more arrays, they should be of equal length because the callback function is applied in parallel to the corresponding elements. if the arrays are of unequal length, the shortest one will be extended with empty elements.
an interesting use of this function is to construct an array of arrays, which can be easily performed by using null as the name of the callback function

\<ahelp hid=\"hid_sma_xparallely\"\>두 개의 자리 표시자와 함께 \<emph\>평행\</emph\> 관계를 삽입합니다.\</ahelp\> \<emph\>명령\</emph\> 창에 \<emph\><?>parallel<?>\</emph\>을 입력할 수도 있습니다.
\<ahelp hid=\"hid_sma_xparallely\"\>inserts a \<emph\>parallel \</emph\>relation with two placeholders.\</ahelp\> you can also type \<emph\><?>parallel<?>\</emph\> in the \<emph\>commands\</emph\> window.