Appendix B. WordPress API Reference
The following is a compendium of functions, actions, and filters referenced within this book.
PHP functions
There are over 700 functions built into PHP. The following are seven that we used, with examples.
dirname
string dirname( string $path);
Returns parent directory's path. Often this is used to determine the path to the current script.
Example:
print dirname(__FILE__); // prints something like '/users/me'
file_get_contents
string file_get_contents( string $filename [, bool $use_include_path = false [, resource $context [, int $offset = -1 [, int $maxlen ]]]] )
Reads an entire file into a string. This is a useful way to read static, non-PHP files. It can even work for downloading remote files, but it's better to tie ...
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