<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Filter Functions</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="filter.examples.sanitization.html">Sanitization</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.filter-has-var.html">filter_has_var</a></div> <div class="up"><a href="book.filter.html">Filter</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="ref.filter" class="reference"> <h1 class="title">Filter Functions</h1> <h2>Table of Contents</h2><ul class="chunklist chunklist_reference"><li><a href="function.filter-has-var.html">filter_has_var</a> — Checks if variable of specified type exists</li><li><a href="function.filter-id.html">filter_id</a> — Returns the filter ID belonging to a named filter</li><li><a href="function.filter-input-array.html">filter_input_array</a> — Gets external variables and optionally filters them</li><li><a href="function.filter-input.html">filter_input</a> — Gets a specific external variable by name and optionally filters it</li><li><a href="function.filter-list.html">filter_list</a> — Returns a list of all supported filters</li><li><a href="function.filter-var-array.html">filter_var_array</a> — Gets multiple variables and optionally filters them</li><li><a href="function.filter-var.html">filter_var</a> — Filters a variable with a specified filter</li></ul> </div> <hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="filter.examples.sanitization.html">Sanitization</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.filter-has-var.html">filter_has_var</a></div> <div class="up"><a href="book.filter.html">Filter</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>
