#What is the content of php company training?
Take a PHP training company as an example:
1. PHP basic part
This part involves the basic basics required for Web development Technology, and the ability to develop a complete dynamic website project. The course content generally includes three aspects of dynamic website development: front-end user interface layout writing (HTML5 CSS3); database design to store website content (MySQL); server business processing (PHP) program development. Every knowledge point in the course is essential content for program developers, and the content of each technical point is very comprehensive and in-depth. The examples in the class are not only rich but also practical.
In addition, each knowledge point is designed based on the latest version of technology, updated every six months, and revised with the participation of technical experts from multiple software companies, in order to achieve truly practical purposes and be able to work with the software. The development technology required by the development company is consistent.
2. PHP Advanced Part
This part consists of four parts: Linux operating system, front-end special effects PHPScript and asynchronous transmission (Ajax), PHP advanced application, and project development. Linux content includes three parts: Linux system management, Linux network management, LAMP and LNMP environment construction and management. The PHP part involves all advanced technologies in PHP development, aiming at the architectural design of large-scale Web projects.
Includes currently very popular PHP object-oriented technologies, PHPScript, Ajax, jQuery, PDO, Memcache, advanced Session, Redis non-relational database, Smarty template, MVC design pattern, project development standard process, MySQL database Advanced applications, as well as custom framework applications, ultra-lightweight learning framework BroPHP and currently popular open source frameworks (ThinkPHP/ZF2/YII/CI, etc.), the content of each technical point in the course is very comprehensive and in-depth In place, the examples in the class are not only rich but also practical. In addition, each knowledge point is designed based on the latest version of technology, updated every six months, and revised with the participation of technical experts from multiple software companies to achieve truly practical purposes and be able to match what large software development companies need. development technology. Every knowledge point in the course is essential for program developers, and can improve developers' development efficiency and develop safe and stable Web systems.
3. PHP Premium Part
While the website is developing and operating, the number of users, data, and visits are constantly growing. Every website that is developing will face execution efficiency. , high access, high concurrency and highly complex data processing and other issues. The traditional website development model can no longer meet our needs. The course learning at this stage is designed to solve the problems of large visits, large storage, large data volume, large traffic, high load, instant burst, strong interaction, low latency, Problems such as multiple query dimensions, separation of dynamic and static, and slow access speed are solved, and all **Linux server designs are completed.
4. Employment preparation Vocational skills and employment guidance
The focus of this stage is sorting, summarizing and reviewing. Allow students to fully organize all the content they have learned previously, have a clear understanding and understanding of all knowledge points, and achieve a comprehensive technical improvement. In addition, case explanations and analysis provide students with all-round guidance on career planning, resumes, and interviews from the perspective of corporate employers, as well as real interviews to test learning results and demonstrate technical strength in real situations.
Note: php Chinese website provides a large number of free, original, high-definition php video tutorials, and will hold php public welfare training regularly!
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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。

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。

在php中,可以使用substr()函数来读取字符串后几个字符,只需要将该函数的第二个参数设置为负值,第三个参数省略即可;语法为“substr(字符串,-n)”,表示读取从字符串结尾处向前数第n个字符开始,直到字符串结尾的全部字符。

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