php installation notes are:
1. Place php5ts.dll, libmysql.dll, and libmcrypt.dll in the php5 root directory. The three files are placed in the system32 directory of the system.
2. Rename the php.ini-dist file in the directory to php.ini, and cut the php.ini file and put it in the c:\windows directory (if it is a 2000 system, put it in c :\winnt directory)
3. Open the c:\windows\php.ini file:
找到:extension_dir = "./" 更改为:extension_dir = "d:\php5\ext 找到: ;extension=php_mbstring.dll ;extension=php_gd2.dll ;extension=php_mysql.dll ;extension=php_mcrypt.dll 去掉注释!
4. Configure IIS to support PHP
1) In the "Control Find and open "Internet Information Services (IIS) Manager" in "Panel" - "Administrative Tools"
2) Find "Website" - "Default Website", right-click "Default Website", and then click "Properties"
3) Click "ISAPI Filter", then click the "Add" button. In the pop-up "Filter Properties" dialog box, fill in the filter name "php" and the executable file "d:\php5\php5isapi. dll", (the path of php5isapi.dll can be selected by pressing the "Browse" button), then click "OK" to exit
4) Click the "Home Directory" tab, then click "Browse" and point the website directory to d :\wwwroot (or other website directory)
5) Click "Configuration" under the home directory label, the "Application Configuration" dialog box will appear, then click the "Add" button, and in the pop-up "Add/Edit Application Extension" Name Mapping" dialog box,
Enter d:\php5\php5iaspi.dll in the executable file location, enter php in the extension, and then confirm
6) Click the "Document" tab, and then click "Add " button, in the pop-up "Add Default Document" dialog box, fill in: index.php, and then confirm
7) Click "Web Service Extension", then click "Add a new Web Service Extension", and then In the pop-up "New Web Service Extension" dialog box, enter php for "Extension name", then click "Add", enter d:\php5\php5isapi.dll under "File Path", confirm, and then click "Set extension status to allow" "Tick the hook before final confirmation to exit.
8) In order to verify whether the environment we just configured can run php normally, first we create a new text and enter the following content
<?php phpinfo(); ?>
Save it as phpinfo.php and put it in the root directory of the website (My here is d:\wwwroot), enter http://localhost/phpinfo.php in the IE browser, and the php information appears after pressing Enter, which proves that the system already supports PHP
Recommended tutorial: "php tutorial》
The above is the detailed content of What are the precautions for php installation?. For more information, please follow other related articles on the PHP Chinese website!

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

在PHP中,可以利用implode()函数的第一个参数来设置没有分隔符,该函数的第一个参数用于规定数组元素之间放置的内容,默认是空字符串,也可将第一个参数设置为空,语法为“implode(数组)”或者“implode("",数组)”。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。


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