Strings

Rather than using a plain char * pointer, PHP uses a custom zend_string type to represent strings. This chapter discusses how to work with this structure, as well as various string-related utilities.

• The zend_string API
  • Structure
  • String accessors
  • Memory management
  • Other operations
  • Interned strings
• smart_str API
  • smart_str VS smart_string
  • Basic API usage
  • smart_str specific tricks
• PHP’s custom printf functions
  • Traditional use