[[PHP]]
*´ðËܾðÊó [#p45fadc1]
|³ÈÄ¥»Ò|.php|
*¥³¥á¥ó¥Èµ½ÒÊýË¡ [#cdbb9770]
-// ¥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¡£
*print, echo[#wf54ea65]
-echo, print¶¦¤Ë¸À¸ì¹½Â¤¤Ê¤Î¤Ç()¤¬Ìµ¤¯¤Æ¤âµ½Ò¤Ç¤¤Þ¤¹¡£
-echo¤Ï¥«¥ó¥Þ¤Ç¶èÀڤäÆÏ¢·ë½ÐÎϤǤ¤Þ¤¹¡£
-£²½Å°úÍÑÉä¤Ç°Ï¤à¤ÈÊÑ¿ôŸ³«¤ä¥¨¥¹¥±¡¼¥×¥·¡¼¥±¥ó¥¹¤òµ½Ò¤Ç¤¤Þ¤¹¡£${}¤È¤«¤®³ç¸Ì¤Ç°Ï¤à¤ÈÊÑ¿ô¤Ç¤¢¤ë¤³¤È¤¬ÌÀ³Î¤Ë¤Ê¤ê¤Þ¤¹¡£
echo $a, $b;
print "Hello ${name}\n"
*·¿ [#d48ede11]
|·¿|Îã|h
|integer|100, 0xff|
|boolean|TRUE, FALSE|
|float|3.14, 1.2e3|
|string|'yes', "Hello!\n"|
|array|array('red', 'blue', 'green')|
-gettype($ÊÑ¿ô̾)¤Ç·¿Ì¾Ê¸»úÎ󤬼èÆÀ¤Ç¤¤Þ¤¹¡£gettype(3.14)¤Çdouble¤ÈÊÖ¤ê¤Þ¤¹¤¬¡¢java¸À¸ì¤Ç¤¤¤¦¤È¤³¤í¤Îfloat¤ÈƱÍͤΰÕÌ£¤Ç¤¹¡£
-·¿¤ò¥Á¥§¥Ã¥¯¤¹¤ë¤È¤¤Ïis_int($var)¤äis_string($var)¤Ê¤É¤òÍѤ¤¤Þ¤¹¡£
-(·¿Ì¾)¤Ç¥¥ã¥¹¥È¤Ç¤¤Þ¤¹¡£
-ÊÑ¿ô¤ä´Ø¿ôÌá¤êÃͤη¿Àë¸À¤Ï¤¢¤ê¤Þ¤»¤ó¡£
*Äê¿ô [#r7e742b1]
Äê¿ôÄêµÁÊýË¡
define("NAME", value);
ÄêµÁºÑ¤ßÄê¿ô
|̾Á°|°ÕÌ£|h
|NULL|̤ÄêµÁ¡¢NULL¤¬ÂåÆþ¤µ¤ì¤Æ¤¤¤ë¡¢unset()¤µ¤ì¤Æ¤¤¤ë¾õÂ֤Ǥ¹¡£¾®Ê¸»ú¤Înull¤â»È¤¨¤Þ¤¹¡£|
|NULL|̤ÄêµÁ¤òɽ¤¹ÃÍ¡£¾®Ê¸»ú¤Înull¤â»È¤¨¤Þ¤¹¡£|
|FALSE|µ¶|
|TRUE|¿¿|
|__FILE__|¼Â¹Ô¤·¤Æ¤¤¤ë¥¹¥¯¥ê¥×¥È¥Õ¥¡¥¤¥ë̾|
|__LINE__|¼Â¹Ô¤·¤Æ¤¤¤ë¹ÔÈÖ¹æ|
Ãí°Õ»ö¹à¡§unset(ÊÑ¿ô̾);¤È¤¹¤ë¤ÈÊÑ¿ô¤½¤Î¤â¤Î¤¬Ìµ¤¯¤Ê¤ê¤Þ¤¹¡£NULL¤òÂåÆþ¤·¤¿ÊÑ¿ô¤Ï¤Ê¤¯¤Ê¤é¤º¤Ë̤ÄêµÁ¤È¤¤¤¦¾õÂ֤Ǹºß¤·¤Þ¤¹¡£
*ÊÑ¿ô [#f098eee9]
PHP¸À¸ì¤ÎÄêµÁºÑ¤ßÊÑ¿ô
|̾Á°|ÆâÍÆ|h
|$_SERVER['argv']|¥¹¥¯¥ê¥×¥È¤ËÅϤµ¤ì¤ë°ú¿ô¤ÎÇÛÎó|
|$_SERVER['argc']|¥¹¥¯¥ê¥×¥È¤ËÅϤµ¤ì¤ë°ú¿ô¤Î¿ô|
|$_SERVER['PHP_SELF']|¥É¥¥å¥á¥ó¥È¥ë¡¼¥È¤ò´ð½à¤È¤·¤¿¥¹¥¯¥ê¥×¥È¤ÎÁêÂХѥ¹|
ApacheͳÍè¤ÎÄêµÁºÑ¤ßÊÑ¿ô
|̾Á°|ÆâÍÆ|h
|$_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 [#z22570ba]
ÇÛÎó¤ÎÄêµÁÊýË¡
$arColor = array(
'red',
'green',
'blue');
$arColor = array();
$arColor[] = 'red';
$arColor[] = 'green';
$arColor[] = 'blue';
$arColor = array(
0=>'red',
1=>'green',
2=>'blue');
$arColor = array();
$arColor[0] = 'red';
$arColor[1] = 'green';
$arColor[2] = 'blue';
-print_r($arColor);¤Ç³Îǧ¤Ç¤¤Þ¤¹¡£~
Array ( [0] => red [1] => green [2] => blue )
ÇÛÎó¸Ä¿ô¤ò»ØÄꤷ¤Æ½é´ü²½¤¹¤ëÊýË¡
$arColor = array();
$arColor = array_pad($arData, 3, 'white'); // ÇÛÎó¡¢³ÈÄ¥¸å¤ÎÇÛÎó¸Ä¿ô¡¢ÀßÄêÃÍ
ÇÛÎó½é´ü²½»þ¤ÎÃí°Õ»ö¹à
¡ß$sum_data[] = array();
¡û$sum_data = array();
¡ß$sum_data[] = array(0, 0, 0, 0, 0, 0, 0);
¡û$sum_data = array(0, 0, 0, 0, 0, 0, 0);
¼¡¤Îɽµ¤Ï¡¢¤¹¤Ç¤Ë¸ºß¤¹¤ë$sum_dataÇÛÎó¤Ø¤Îpush¤È¤Ê¤ê¤Þ¤¹¡£
$sum_data[] = array(0, 0, 0, 0, 0, 0, 0);
¥Ï¥Ã¥·¥å¤ÎÄêµÁÊýË¡
$arColor = array(
'red'=>'#ff0000',
'green'=>'#00ff00',
'blue'=>'#0000ff');
$arColor['red'] = '#ff0000';
$arColor['green'] = '#00ff00';
$arColor['blue'] = '#0000ff';
-print_r($arColor);¤Ç³Îǧ¤Ç¤¤Þ¤¹¡£~
Array ( [red] => #ff0000 [green] => #00ff00 [blue] => #0000ff )
ÇÛÎóÍ×ÁǤκï½ü¤ª¤è¤ÓÇÛÎ󥤥ó¥Ç¥Ã¥¯¥¹¿¶¤êľ¤·ÊýË¡
$a = array(1 => 'one', 2 => 'two', 3 => 'three');
unset($a[2]);
$b = array_values($a); // b¤Ï¡¢array(0 => 'one', 1 =>'three')¤È¤Ê¤ê¤Þ¤¹
*¼° [#yb158315]
¼¡¤ÎÃͤÏFALSE¤È¤Ê¤ê¤Þ¤¹¡£
-integer¤Î0
-double¤Î0.0
-¶õ¤Îʸ»úÎó¡¢ ¤ª¤è¤Óʸ»úÎó¤Î"0"
-Í×ÁǤοô¤¬¥¼¥í¤Ç¤¢¤ëÇÛÎó
-¥¼¥í¤òÍ×ÁǤȤ¹¤ë¥ª¥Ö¥¸¥§¥¯¥È(PHP 4¤Î¤ß)
-ÆÃÊ̤ÊÃÍ NULL(Ãͤ¬¥»¥Ã¥È¤µ¤ì¤Æ¤¤¤Ê¤¤ÊÑ¿ô¤ò´Þ¤à)
-¶õ¤Î¥¿¥°¤«¤éºîÀ®¤µ¤ì¤¿ SimpleXML ¥ª¥Ö¥¸¥§¥¯¥È
*±é»»»Ò [#x1985925]
³ä¤ê»»¤ÎÃí°ÕÅÀ
~À°¿ô¤òÀ°¿ô¤Ç³ä¤Ã¤¿¾ì¹ç¡¢¾ï¤ËfloatÃͤȤʤê¤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 [#b189af38]
¥¨¥¹¥±¡¼¥×¥·¡¼¥±¥ó¥¹°ìÍ÷
|µ¹æ|ÀâÌÀ|h
|\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
$str = <<< HERE
¤Ò¤È¤è¤Ò¤È¤è¤Ë
¤Ò¤È¤ß¤´¤í
HERE;
print("<pre>".$str."<pre>");
¥Ò¥¢¥É¥¥å¥á¥ó¥È¤ÎÃæ¤Ï¥Ñ¡¼¥¹¤µ¤ì¤Þ¤¹¡£
*À©¸æ¹½Â¤ [#d6f2baa7]
if, switch, while, do while, forʸ¤Ï¡¢java¤ÈƱ¤¸¤Ç¤¹¡£
$arColor = array(
'red'=>'#ff0000',
'green'=>'#00ff00',
'blue'=>'#0000ff');
foreach ($arColor as $value) {
print($value."<br />");
}
foreach ($arColor as $key => $value) {
print($key."<br />");
}
*´Ø¿ô [#ie935f12]
$g_charForPrint = '*';
function printChars($iCount) {
global $g_charForPrint;
for ($i = 0; $i < $iCount; $i++) {
print($g_charForPrint);
}
}
printChars(10);
*¥é¥¤¥Ö¥é¥ê¡¦¥¤¥ó¥¯¥ë¡¼¥É¥Õ¥¡¥¤¥ë [#ha4338cb]
*¥¯¥é¥¹ [#e2e3884e]