PHP 함수 is korean book

PHP is_korean_book

1 함수

function is_korean_book($isbn) {
	$c = strlen($isbn)==13 ? substr($isbn, 0, 5) : substr($isbn, 0, 2);
	if( $c == 97889 || $c == 97911 || $c == 89 ) return true;
	return false;
}

2 활용예시

• 예제: http://example.zetawiki.com/php/is_korean_book.php

소스코드

<?php
function trace($obj) {
	if(php_sapi_name()!='cli') { echo '<xmp>'; print_r($obj); echo '</xmp>'; return; }
	if(is_bool($obj)||is_numeric($obj)) { var_dump($obj); echo PHP_EOL; return; }
	if(is_string($obj)) { echo $obj.PHP_EOL; return; }
	print_r($obj);
}

function is_korean_book($isbn) {
	$c = strlen($isbn)==13 ? substr($isbn, 0, 5) : substr($isbn, 0, 2);
	if( $c == 97889 || $c == 97911 || $c == 89 ) return true;
	return false;
}

$isbns = array('8983924950', '9788983924957', '8972836745', '9788972836742',
	'1576754227', '9781576754221', '1118063333', '9781118063330');

foreach( $isbns as $isbn ) {
	$yes_no = is_korean_book($isbn) ? 'Yes' : 'No';
	trace( "isbn[$isbn] is korean book? [$yes_no]" );
}

실행결과

[root@zetawiki php]# php is_korean_book.php 
isbn[8983924950] is korean book? [Yes]
isbn[9788983924957] is korean book? [Yes]
isbn[8972836745] is korean book? [Yes]
isbn[9788972836742] is korean book? [Yes]
isbn[1576754227] is korean book? [No]
isbn[9781576754221] is korean book? [No]
isbn[1118063333] is korean book? [No]
isbn[9781118063330] is korean book? [No]

3 같이 보기

• ISBN 국내도서, 외국도서 구별