(PHP 4, PHP 5, PHP 7) Return array entries that match the pattern

(PHP 4, PHP 5, PHP 7) Set locale information

(PHP 5, PHP 7) Write a formatted string to a stream

(PHP 4, PHP 5, PHP 7) Alias of

(PHP 4, PHP 5, PHP 7) Return a specific character

(PHP 4, PHP 5, PHP 7) Quote string with slashes in a C style

Examples: Use of this modifier is discouraged, as it can easily introduce security vulnerabilites:

(PHP 4, PHP 5, PHP 7) Binary safe string comparison

(PHP 5, PHP 7) Decode a uuencoded string string

(PHP 4, PHP 5, PHP 7) Make a string's first character uppercase