PHP IPµØÖ·ºÍÊ®½øÖÆÊý×Ö»¥×ª
IPV4 ¿ÉÒÔ¿´×ö4¸ö256½øÖƵÄÊý×Ö, ¿ÉÒÔ°´³£¹æµÄ½øÖÆ×ª»»»»Ëã³ÉÊ®½øÖÆ.
Èç 192.168.1.1 »»Ëã³É10½øÖÆ:
192*256*256*256 + 168*256*256+1*256+1
Æäʵ¼ÆËã»ú¸üÉó¤ÒÆÎ»ºÍÓë»òÔËËã. ¿ÉÒԸĽøËã·¨ÈçÏÂ.
IP ת³¤ÕûÐÍ
public ipToInt($sIP)
{
$aIP = explode('.',$sIP);
$iIP = ($aIP[0] << 24) | ($aIP[1] << 16) | ($aIP[2] << 8) | $aIP[3]
if($iIP < 0) $iIP += 4294967296;
return $iIP;
}
ÕûÐÍת IP:
function intToIP($iIP)
{
$xor = array(0x000000ff,0x0000ff00,0x00ff0000,0xff000000);
for($i=0; $i<4; $i++)
{
${s.$i} = ($iIP & $xor[$i]) >> $i*8;
if (${s.$i} < 0) ${s.$i} += 256;
}
return $s3.'.'.$s2.'.'.$s1.'.'.$s0;
}
Ïà¹ØÎĵµ£º
1£®Ç°ÑÔ
PHP £¨´Ó PHP 3.05
¿ªÊ¼£©Îª±£´æ¶ÔÏóÌṩÁËÒ»×éÐòÁл¯ºÍ·´ÐòÁл¯µÄº¯Êý£ºserialize¡¢unserialize¡£²»¹ýÔÚ PHP
ÊÖ²áÖжÔÕâÁ½¸öº¯ÊýµÄ˵Ã÷½öÏÞÓÚÈçºÎʹÓ㬶ø¶ÔÐòÁл¯½á¹ûµÄ¸ñʽȴû×öÈκÎ˵Ã÷¡£Òò´Ë£¬Õâ¶ÔÔÚÆäËûÓïÑÔÖÐʵÏÖ PHP
·½Ê½µÄÐòÁл¯À´Ëµ£¬¾Í±È½ÏÂé·³ÁË¡£ËäÈ»ÒÔǰҲËѼ¯ÁËһЩÆäËûÓïÑÔʵÏÖµÄ PHP ÐòÁл¯µ ......
ÔÎÄÁ´½Ó£ºhttp://www.williamlong.info/archives/1846.html
ÔÚWindows IIS
6.0ÏÂÅäÖÃPHP
£¬Í¨³£ÓÐCGI
¡¢ISAPI
ºÍFastCGI
ÈýÖÖÅäÖ÷½Ê½£¬ÕâÈýÖÖģʽ¶¼¿ÉÒÔÔÚIIS
6.0ϳɹ¦ÔËÐУ¬ÏÂÃæÎҾͽ²Ò»ÏÂÕâÈýÖÖ·½Ê½ÅäÖõÄÇø±ðºÍÐÔÄÜÉϵIJîÒì¡£
¡¡¡¡1¡¢CGI
£¨Í¨ÓÃÍø¹Ø½Ó¿Ú/Common Ga ......
require() Óë require_once()
ͨ³£·ÅÔÚ PHP ³ÌÐòµÄ×îÇ°Ãæ£¬PHP ³ÌÐòÔÚÖ´ÐÐǰ£¬¾Í»áÏȶÁÈë require
ËùÖ¸¶¨ÒýÈëµÄÎļþ£¬Èç¹û³öÏÖ´íÎóÊÇÖÂÃüµÄ¡£
nclude() Óë include_once()
&n ......
×¢½â·ûºÅ:
// µ¥ÐÐ×¢½â
/* */ ¶àÐÐ×¢½â
ÒýºÅµÄʹÓÃ
’ ’ µ ......
1.PHPÀúÊ·
a.1995ÄêÓÉLerdorf´´½¨£¬µ±Ê±ËûÊÇΪÁË´´½¨Ò»¸ö·ÃÎʼÆËãÆ÷
b.1997Äê11Ô·¢ÐÐPHP 2.0£¬³ÆÎªPHP-FI£¨¸öÈËÖ÷Ò³-±íµ¥½âÊÍÆ÷£©
c.1998Äê6Ô·¢ÐÐPHP3.0£¬Ãû³ÆÓÉPersonal Home Page ±ä³É HyperText Preprocessor(³¬Îı¾Ô¤´¦ÀíÆ÷)
d.2000Äê5ÔÂPHP4·¢²¼
e.PHP5·¢²¼
2.php4,php5ÌØÐÔ
3 ......