PHP/ʸˡ ¤Î¥Ð¥Ã¥¯¥¢¥Ã¥×(No.4)
- ¥Ð¥Ã¥¯¥¢¥Ã¥×°ìÍ÷
- º¹Ê¬ ¤òɽ¼¨
- ¸½ºß¤È¤Îº¹Ê¬ ¤òɽ¼¨
- ¥½¡¼¥¹ ¤òɽ¼¨
- PHP/ʸˡ ¤Ø¹Ô¤¯¡£
- 1 (2008-02-07 (ÌÚ) 08:02:32)
- 2 (2008-02-07 (ÌÚ) 08:09:46)
- 3 (2008-02-09 (ÅÚ) 05:00:48)
- 4 (2008-02-09 (ÅÚ) 13:00:57)
- 5 (2008-02-09 (ÅÚ) 13:30:46)
- 6 (2008-02-11 (·î) 02:13:07)
- 7 (2008-05-13 (²Ð) 22:47:51)
- 8 (2008-10-19 (Æü) 13:45:00)
- 9 (2010-02-16 (²Ð) 18:00:39)
- 10 (2010-02-18 (ÌÚ) 19:55:14)
- 11 (2010-05-09 (Æü) 01:49:21)
- 12 (2010-09-06 (·î) 18:58:57)
´ðËܾðÊó †
³ÈÄ¥»Ò | .php |
¥³¥á¥ó¥Èµ½ÒÊýË¡ †
- // ¥³¥á¥ó¥È
- # ¥³¥á¥ó¥È
- /* ¥³¥á¥ó¥È */
Ãí°ÕÅÀ: //, #¤Ï¡¢¹ÔËö¤Þ¤¿¤Ï?>¤Þ¤Ç¤¬¥³¥á¥ó¥È¤Ë¤Ê¤ê¤Þ¤¹¡£
Hello, world! †
·¿ †
·¿ | Îã |
integer | 100, 0xff |
boolean | TRUE, FALSE |
double | 3.14, 1.2e3 |
string | 'yes', "Hello!\n" |
- gettype($ÊÑ¿ô̾)¤Ç¡¢·¿Ì¾¤¬¼èÆÀ¤Ç¤¤Þ¤¹¡£gettype(3.14)¤Çdouble¤ÈÊ֤뤿¤á¡¢É½¤Ç¤Ïdouble¤È¤·¤Æ¤¤¤Þ¤¹¤¬¡¢java¸À¸ì¤Ç¤¤¤¦¤È¤³¤í¤Îfloat¤ÈƱÍͤΰÕÌ£¤Ç¤¹¡£
- (·¿Ì¾)¤Ç¥¥ã¥¹¥È¤Ç¤¤Þ¤¹¡£
- ÊÑ¿ô¤ä´Ø¿ôÌá¤êÃͤη¿Àë¸À¤Ï¤¢¤ê¤Þ¤»¤ó¡£
Äê¿ô †
Äê¿ôÄêµÁÊýË¡
define("NAME", value);
ÄêµÁºÑ¤ßÄê¿ô
̾Á° | °ÕÌ£ |
NULL | ̤ÄêµÁ |
FALSE | µ¶ |
TRUE | ¿¿ |
__FILE__ | ¼Â¹Ô¤·¤Æ¤¤¤ë¥¹¥¯¥ê¥×¥È¥Õ¥¡¥¤¥ë̾ |
__LINE__ | ¼Â¹Ô¤·¤Æ¤¤¤ë¹ÔÈÖ¹æ |
ÊÑ¿ô †
PHP¸À¸ì¤ÎÄêµÁºÑ¤ßÊÑ¿ô
̾Á° | ÆâÍÆ |
$_SERVER['argv'] | ¥¹¥¯¥ê¥×¥È¤ËÅϤµ¤ì¤ë°ú¿ô¤ÎÇÛÎó |
$_SERVER['argc'] | ¥¹¥¯¥ê¥×¥È¤ËÅϤµ¤ì¤ë°ú¿ô¤Î¿ô |
$_SERVER['PHP_SELF'] | ¥É¥¥å¥á¥ó¥È¥ë¡¼¥È¤ò´ð½à¤È¤·¤¿¥¹¥¯¥ê¥×¥È¤ÎÁêÂХѥ¹ |
ApacheͳÍè¤ÎÄêµÁºÑ¤ßÊÑ¿ô
̾Á° | ÆâÍÆ |
$_SERVER['DOCUMENT_ROOT'] | ¥É¥¥å¥á¥ó¥È¥ë¡¼¥È¥Ç¥£¥ì¥¯¥È¥ê |
$_SERVER['HTTP_USER_AGENT'] | ¥æ¡¼¥¶¥¨¡¼¥¸¥§¥ó¥È |
$_SERVER['REMOTE_ADDR'] | ¥¯¥é¥¤¥¢¥ó¥È¤ÎIP¥¢¥É¥ì¥¹ |
$_SERVER['REMOTE_PORT'] | ¥¯¥é¥¤¥¢¥ó¥È¤Î¥Ý¡¼¥ÈÈÖ¹æ |
$_SERVER['SCRIPT_FILENAME'] | ¥¹¥¯¥ê¥×¥È¤ÎÀäÂХѥ¹ |
$_SERVER['SCRIPT_NAME'] | ¥¹¥¯¥ê¥×¥È¤ÎÁêÂХѥ¹ |
$_SERVER['SERVER_NAME'] | ¥µ¡¼¥Ð¤Î¥Û¥¹¥È̾ |
$_SERVER['SERVER_PORT'] | ¥µ¡¼¥Ð¤Î¥Ý¡¼¥ÈÈÖ¹æ |
$_SERVER['SERVER_PROTOCOL'] | ¥×¥í¥È¥³¥ë̾¤È¥Ð¡¼¥¸¥ç¥ó |
²ÄÊÑÊÑ¿ô
$foo = 7; $varX = "foo"; print($$varX); // 7
ÇÛÎ󡦥ϥå·¥å †
ÇÛÎó¤ÎÄêµÁÊýË¡
$arColor = array( 'red', 'green', 'blue');
$arColor[] = 'red'; $arColor[] = 'green'; $arColor[] = 'blue';
$arColor = array( 0=>'red', 1=>'green', 2=>'blue');
$arColor[0] = 'red'; $arColor[1] = 'green'; $arColor[2] = 'blue';
¥Ï¥Ã¥·¥å¤ÎÄêµÁÊýË¡
$arColor = array( 'red'=>'#ff0000', 'green'=>'#00ff00', 'blue'=>'#0000ff');
$arColor['red'] = '#ff0000'; $arColor['green'] = '#00ff00'; $arColor['blue'] = '#0000ff';
¼° †
±é»»»Ò †
³ä¤ê»»¤ÎÃí°ÕÅÀ
À°¿ô¤òÀ°¿ô¤Ç³ä¤Ã¤¿¾ì¹ç¡¢¾ï¤Ëdouble(== float)ÃͤȤʤê¤Þ¤¹¡£
ʸ»úÎó±é»»»Ò
¥Ô¥ê¥ª¥É¤Çʸ»úÎó¤Î·ë¹ç¤¬¹Ô¤¨¤Þ¤¹¡£
print("foo"."99"); $strTmp .= "123";
¼Â¹Ô±é»»»Ò
¥Ð¥Ã¥¯¥¯¥©¡¼¥È¤Ç¥³¥Þ¥ó¥É¤ò°Ï¤¦¤È¡¢¤½¤Î¼Â¹Ô·ë²Ì¤òʸ»úÎó¤È¤·¤Æ¼èÆÀ¤Ç¤¤Þ¤¹¡£
<?php $strTmp = `pwd`; print("<pre>".$strTmp."<pre>"); ?>
¥¨¥é¡¼À©¸æ±é»»»Ò
@¤ò´Ø¿ô¤ÎÀèƬ¤ËÉÕ¤±¤ë¤È¡¢¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸¤¬½ÐÎϤµ¤ì¤Ê¤¯¤Ê¤ê¤Þ¤¹¡£
$fin = @fopen("foo.txt", "r") or die("¥Õ¥¡¥¤¥ë¤¬Â¸ºß¤·¤Þ¤»¤ó");
ʸ»úÎó †
¥¨¥¹¥±¡¼¥×¥·¡¼¥±¥ó¥¹°ìÍ÷
µ¹æ | ÀâÌÀ |
\xnn | 16¿Ê¿ôɽµ¤Î£±Ê¸»ú |
\r | ¥¥ã¥ê¥Ã¥¸¥ê¥¿¡¼¥ó, CR, 0x0d |
\n | ²þ¹Ô, LF, 0x0a |
\t | ¿åÊ¿¥¿¥Ö |
\$ | ¥É¥ëµ¹æ, PHP¤Ç¤ÏÆó½Å°úÍÑÉäʸ»úÎó¤ÎÃæ¤ÇÊÑ¿ô¤òŸ³«¤Ç¤¤Þ¤¹¡£ |
\" | Æó½Å°úÍÑÉä |
\\ | \¼«¿È, °ì½Å°úÍÑÉäʸ»úÎó¤ÎÃæ¤Ç¤â»ÈÍѲÄǽ |
\' | °ì½Å°úÍÑÉä, °ì½Å°úÍÑÉäʸ»úÎó¤ÎÃæ¤Ç»ÈÍÑ |
¥Ò¥¢¥É¥¥å¥á¥ó¥È
$str = <<< HERE ¤Ò¤È¤è¤Ò¤È¤è¤Ë ¤Ò¤È¤ß¤´¤í HERE;
À©¸æ¹½Â¤ †
´Ø¿ô †
$g_charForPrint = '*'; function printChars(int iCount) { global $g_charForPrint; for ($i = 0; $i < iCount; $i++) { print($g_charForPrint); } }