If you have learned other languages, you will find that PHP is actually quite simple. Some people say that PHP learning is suitable for reading manuals, but there are still many classic books that can help everyone get started and improve. You can read the following 4 books carefully.
Recommended courses: PHP Tutorial.
1. Let’s talk about PHP in detail
The classic for getting started with PHP, the content is detailed and easy to understand, and it comprehensively covers web development the required knowledge content. It is the first choice textbook from entry to proficiency in PHP technology. The most conscientious quick-start PHP book in China
2.Head First: PHP & MySQL (Chinese version)
has a large number of examples, diagrams, and forms Various exercises will not list a lot of keywords and rules to make you sleepy, but will surprise you: it turns out that programming can also be learned in this way!
3. In-depth PHP: object-oriented, pattern and practice
Suitable for people with a certain PHP foundation, this is a masterpiece by Yahoo PHP experts. This is a good book that will benefit you every time you read it.
4.PHP and MySQL Web Development
Yes, this is the book that some students call the "junk Bible of junk PHP language" . But this book covers almost all the content of PHP, and the examples are very detailed. It is undeniable that many people get started through this book.
The book is just an aid, the code still lies in practice. You won't learn much just by reading books, because programming requires a deep understanding of the theory during the actual process of writing code. But the content in the book can give you a rough impression of what php is all about.
The above is the detailed content of Which book is best for self-study PHP?. 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。

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。

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。

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。

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。


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