Lightbox Info Board : SQLの窓

よく使う関数

int count ( mixed var )

varに含まれる要素の数を返す

変数が配列でない場合は1を返す
count(NULL) は0と等価

count()は、セットされていない変数では0を返しますが、
変数が空の配列の場合も0を返します。
ある変数がセットされているかどうかを調べるには、 isset()を使用


	$uk_work = explode( "／", $SQL->Field["備考"] );
	$array_max = count( $uk_work );
	if ( $array_max > 1 ) {
		for( $i = 0; $i < $array_max; $i++ ) {
			$uk_biko .= $uk_work[$i] . "<br>";
		}
	}

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