for文の中でカウンタを宣言する
<!DOCTYPE HTML> <html lang="ja-JP"> <head> <meta charset="UTF-8"> <title></title> </head> <body> </body> <script type="text/javascript"> var str = ""; for(var x = 1; x < 5; x++){ str += String(x); } document.getElementsByTagName("body")[0].innerHTML = str; </script> </html>
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for文の外でカウンタを宣言する
<!DOCTYPE HTML> <html lang="ja-JP"> <head> <meta charset="UTF-8"> <title></title> </head> <body> </body> <script type="text/javascript"> var str = ""; var x = 0; for(x = 1; x < 5; x++){ str += String(x); } document.getElementsByTagName("body")[0].innerHTML = str; </script> </html>
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<?php header("Content-type: text/html; charset=utf-8"); for($x = 1; $x < 5; $x++){ echo $x; } ?>
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<?php header("Content-type: text/html; charset=utf-8"); $x = 1; while($x >= 1 && $x < 5){ echo $x; $x++; } ?>
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<?php header("Content-type: text/html; charset=utf-8"); for($x = 1; $x < 5; $x++): echo $x; endfor; ?>
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<?php header("Content-type: text/html; charset=utf-8"); for($x = 1, $y = 0; $x < 5, $y <= 3; $y = $x, $x++){ echo $x; } ?>
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<?php header("Content-type: text/html; charset=utf-8"); $x = 0; for(;;){ echo $x; $x++; if($x >= 10){break;} } ?>
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