配列の要素数を取得(配列の要素数を知る)
<?php $city[0] = '東京'; $city[1] = '名古屋'; $city[2] = '京都'; $city[3] = '大阪'; $city[4] = '福岡'; ?> <!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>配列の要素数を知る</title> </head> <body> <table border="1" width="100"> <tr><th>都市名</th></tr> <?php for($i = 0; $i < count($city); $i++){ print'<tr><td>'.$city[$i].'</td></tr>'."\n"; } ?> </body> </html>