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$abc='my name is tome';
echo $abc //½á¹ûÊÇ:my name is tom
echo '$abc' //½á¹ûÊÇ:$abc
echo "$abc" //½á¹ûÊÇ:my name is tom
ÌØ±ðÔÚʹÓÃMYSQLÓï¾äµÄʱºò£¬Ë«ÒýºÅºÍµ¥ÒýºÅµÄÓ÷¨ÈÃÐÂÊÖ²»ÖªËù´ë£¬ÔÚÕâÀ¾Ù¸öÀý×Ó£¬À´½øÐÐ˵Ã÷¡£
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select    *    from    abc_table where user_name='abc';
SQLÓï¾ä¿ÉÒÔд³É:
SQLstr = "select    *    from abc_table where user _name= 'abc'" ;
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$user_name = $_REQUEST['user_name']; //×Ö·û´®±äÁ¿
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$user=array ("name"=>
$_REQUEST['user_name‘,"age"=>$_REQUEST['age'];//Êý×é±äÁ¿
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SQLstr = "select    *    from abc_table where user_name = ' " .
$user_name . " ' ";
SQLstr = "select * from abc_table where user_name = ' " .
$user["name"] . " ' ";
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SQLstr="select * from abc_table where user_name = ' abc ' " ;
SQLstr="select * from abc_table where user_name =' " . $user _name .
" ' ";
SQLstr="select * from abc_table where user_name =' " . $user["name"]
. " ' ";
SQLstr¿ÉÒÔ·Ö½âΪÒÔÏÂ3¸ö²¿·Ö:
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2£º$user //±äÁ¿
3£º" ' "
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PHP»ñÈ¡radioÖµ£¬²¢ÓÃ×÷²ÎÊý²éѯÊý¾Ý¿â£¬Í¬Ò»Ò³ÃæÏÔʾ

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<?php
error_reporting(E_ALL ^ E_NOTICE);
//create database test
//create table php_radio(id int(10) NOT NULL AUTO_INCREMENT, name varchar(100), description varchar(1000), primary key(id));
//insert php_radio value ......

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ת×Ô£º http://www.phpsoho.com/article/php/200809/09-239.html
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PHP µ÷ÓÃ C# dll

ŪÁ˰ëÌì, PHP ÖÕÓÚÄܵ÷ÓÃÎÒµÄC# dll ÁË.
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ÎÒ»¹ÉµÙâÙâµÄÓàRegsvr32 ×¢²áÄǸöc# dll.
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Windows xp sp3 ; apache 2.2.14 ; php 5.2.12 ;
VS2010 beta ;
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PHP5 , C#
C#²¿·Ö:
´´½¨Ò»¸ö C# Class Library . (dll) ......

PHP $_SERVER[¡¯PHP_SELF¡¯]

REQUEST_URI ·µ»ØµÄÊǰüÀ¨ºóÃæÊý¾Ý´®µÄµØÖ·£¬Èç index.php?str=1234 PHP_SELF ÊÇ index.php
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