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copied!<p>try with:</p> <p><strong>jQuery:</strong></p> <pre><code>$(document).ready(function(){ $.ajax({ url : 'index.php', dataType : "html",/* JSON, HTML, SJONP... */ type : "get", /* POST or GET; Default = GET */ data:{ keyword : "SOMEVALUE" }, success : function( response ) { console.log( response ) ; } }); }) </code></pre> <p><strong>PHP:</strong></p> <pre><code><?php if( array_key_exists( "keyword" , $_GET ) ) { if( !empty( $_GET["keyword"] ) ) { echo "<p>Woooow ajax!</p>"; } } ?> </code></pre> <p><strong>GET "SOMEVALUE" with PHP:</strong></p> <pre><code>echo $_GET["keyword"] </code></pre> <p><strong>GET "SOMEVALUE" with jQuery:</strong></p> <pre><code>data:{ keyword: $( "input" ).val() } </code></pre> <p><strong>OR USE PHP IN YOU JQUERY:</strong></p> <pre><code><?php if( array_key_exists( "keyword" , $_GET ) ) { $keyword = htmlentities ($_GET["keyword"],ENT_COMPAT,'UTF-8', true ); $keyword = str_replace("'","\'",$keyword); echo "var keywordValue = '" . $keyword."';" }else{ echo "var keywordValue = '';"; } ?> data:{ keyword: keywordValue } </code></pre> <p><strong>And you code edited:</strong></p> <pre><code><!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>demo</title> <script src="http://code.jquery.com/jquery-1.9.1.js"></script> <script type="text/javascript"> $(document).ready(function(){ $( "#search" ).submit(function(){ /** * Send ajax */ $.ajax({ url : 'jquery2.php', dataType : "html",/* JSON, HTML, SJONP... */ type : "get", /* POST or GET; Default = GET */ data:{ keyword : $( self ).val() /* $(self) = $("#keyword") */ }, success : function( response ) { /** * Get Data and set on field2 */ $("#filter").val( response ) } }); /* prevent event */ return false; }); }); </script> </head> <body> <input type="text" name="keyword" id="keyword" /> <input type="hide" name="filter" id="filter" /> <input type="submit" value="Go!" /> </body> </html> </code></pre>

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