


This article collects various solutions to the PHP command line mode prompt "php_mbstring.dll was not found and the file cannot be started." Friends in need can refer to it.
Solution:
Just move extension=php_mbstring.dll to before extension=php_exif.dll in the php.ini file.
The reason is that exif needs to call mbstring, so mbstring must be in front.
php_exif.dll, EXIF function library, requires php_mbstring.dll.
And in php.ini, php_exif.dll must be loaded after php_mbstring.dll.
If the above method does not work, please refer to method two
php_mbstring.dll was not found, the file cannot be started,
Solution:
The default in php.ini is extension_dir = "./". However, the extension dll is under the ext directory, so change it to extension_dir = "ext/".
If there is no php_mbstring.dll file in the system, you can download it
The installation method is as follows
Copy your downloaded php_mbstring.dll to
C:/Windows/System/System32
C:/Windows/System
C:/Windows
This is the system directory, whichever disk you installed on is the same disk
Indicate the source when reprinting articles created on this site http://www.bKjia.c0m/phper/php.html

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。

链接列表使用动态内存分配,即它们相应地增长和收缩。它们被定义为节点的集合。这里,节点有两部分,即数据和链路。数据、链接和链表的表示如下-链表的类型链表有四种类型,如下:-单链表/单链表双/双向链表循环单链表循环双链表我们使用递归方法求链表长度的逻辑是-intlength(node*temp){ if(temp==NULL) returnl; else{&n

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。

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。

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。


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