What does php and h5 full stack engineer mean?
What is php?
PHP is "Hypertext Preprocessor" and is a general open source scripting language. PHP is a scripting language executed on the server side. It is similar to C language and is a commonly used website programming language. PHP's unique syntax mixes C, Java, Perl, and PHP's own syntax. It is conducive to learning and widely used. It is mainly suitable for the field of web development.
PHP Programmer
PHP Programmer is a programmer who uses PHP as a development language. But often a programmer is not just limited to a certain development language, or divided by a certain development language. However, in order to improve development efficiency, the division of labor among technology companies is becoming increasingly clear, and it is rare for a programmer to develop in multiple languages at the same time.
h5Full-Stack Engineer
Full-stack engineer refers to a person who masters a variety of skills and can use multiple skills to independently complete products. Also called full-end engineer (having both front-end and back-end capabilities), English Full Stack developer.
The development of modern projects requires mastering a variety of technologies. Internet projects require back-end development, front-end development, interface design, product design, databases, various mobile clients, three-screen compatibility, restFul API design, OAuth, etc. For more avant-garde projects, Single Page will also be used Technologies such as Application, Web Socket, HTML5/CSS3, as well as third-party development of WeChat official accounts, Weibo applications, etc.
The Web front-end is far from as simple as cutting a picture and using jQuery to run AJAX compatible with various browsers. For modern Web front-ends, you need to use modular development, multi-screen compatibility, MVC, various complex interactions and optimizations, and you even need to use Node.js to assist front-end development.
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php怎么除以100保留两位小数Apr 22, 2022 pm 06:23 PMphp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。
php字符串有没有下标Apr 24, 2022 am 11:49 AMphp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。
php怎么根据年月日判断是一年的第几天Apr 22, 2022 pm 05:02 PM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怎么读取字符串后几个字符Apr 22, 2022 pm 08:31 PM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。
php怎么替换nbsp空格符Apr 24, 2022 pm 02:55 PM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怎么查找字符串是第几位Apr 22, 2022 pm 06:48 PM查找方法：1、用strpos()，语法“strpos("字符串值","查找子串")+1”；2、用stripos()，语法“strpos("字符串值","查找子串")+1”。因为字符串是从0开始计数的，因此两个函数获取的位置需要进行加1处理。
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