PHP high-end course, php high-end_PHP tutorial

PHP high-end course, php high-end

Chapter 1: AboutPHPString 6

1.1 String Syntax 6

1.1.1 How to define strings in PHP 6

1.1.2 The role of double quotes 6

1.1.3 Conversion of strings and other types 6

1.1.4 Get and modify characters in strings 6

1.2 String Principle 6

1.2.1 How are strings stored at the bottom level? 6

1.2.2 String encoding analysis 6

1.2.3 About "binary" security 6

1.3 Character encoding method 6

1.3.1 Bits and Bytes 6

1.3.2 ASCIIEncoding 6

1.3.3 UnicodeEncoding 6

1.3.4 XML uses Unicode to represent Chinese characters 6

1.4 UTF-8 and GBK encoding principles 6

1.4.1 UTF-8 encoding definition 6

1.4.2 UTF-8 encoding rules 6

1.4.3 The difference between with BOM and without BOM 6

1.4.4 UTF-8 takes up 6 spaces

1.4.5 Conversion between Unicode and UTF-8 6

1.4.6 What’s up with signed UTF-8 6

1.4.7 GB2312 and GBK encoding source 6

1.4.8 About mbstring and iconv 6

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