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PHP+APACHE+MYSQL


copy F:\php\php5ts.dll F:\Apache2.2\bin\
copy F:\php\libmysql.dll F:\Apache2.2\bin\
copy F:\php\php.ini-recommended F:\php\php.ini
httpd:
LoadModule php5_module "F:\php\php5apache2_2.dll"
PHPIniDir "F:\php\php.ini"
AddType application/x-httpd-php .php
php.ini:
short_open_tag = Off ¸Ä³É short_open_tag = On
extension_dir = "./" ¸Ä³É extension_dir = "F:\php\ext\"
;extension=php_mysql.dll ¸Ä³É extension=php_mysql.dll
;date.timezone = ¸Ä³É date.timezone = "Asia/Shanghai"


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if(!is_numeric($jp_total)||strpos($jp_total,".")!==false){
echo "²»ÊÇÕûÊý";
}else{
echo "ÊÇÕûÊý";
} ......

PHP Floating point precision

Floating point precision
It is typical that simple decimal fractions like 0.1
or
0.7
cannot be converted into their internal binary
counterparts without a small loss of precision. This can lead to
confusing
results: for example, floor((0.1+0.7)*10)
will usually
return 7
......

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injection£¬XSS£¬Path Disclosure£¬Remote commands
executionÕâÑùµÄ×ÖÑ۱ȱȽÔÊÇ£¬ÎÒÃÇ¿´ÁËÖ®ºóµÄÓÃ;ÄѵÀ½ö½öÊÇ×¥È⼦?¶ÔÓÚÎÒÃÇÏë×öweb°²È«µÄÈËÀ´Ëµ£¬×îºÃ¾ÍÊÇÄÃÀ´Ñ§Ï°£¬¿ÉÊÇÍòÎï×¥¸ùÔ´£¬ÎÒà ......

PHP $_GET $_POST


$_GET ±äÁ¿ÓÃÓÚÊÕ¼¯À´×Ô method="get" µÄ±íµ¥ÖеÄÖµ¡£
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