program php and alert javascript on form html -



program php and alert javascript on form html -

i have problem simple programme in php include alert javascript. code:

<?php function iva(){ $country='it'; $vatnum=$_post['n']; $a="work"; $b="notwork"; $url='http://isvat.appspot.com/'.$country.'/'.$vatnum.'/'; $response = file_get_contents($url); //global $a, $b; if( $response == 'true' ){ echo $a; } if ($response != 'true'){ echo $b; } } ?> <script> function ivaz(){ alert("<?php iva() ?>"); } </script> <form method="post"> <input name="n" type="textarea" > <input onclick="ivaz();" value="validate" type="submit"> </input> </form>

my programme take value input text box , pass value php script homecoming true or false in javascript alert. programme work, homecoming previous value passed in input box. can help me solve it?

thanks guys.

no, doesn't work way. if want phone call php function javascript without page refreshing, need xmlhttprequest.

example:

<?php // php process when called xmlhttprequest if($_server['request_method'] == 'post') { $vatnum = $_post['n']; $country='it'; $a = "work"; $b = "notwork"; $url = 'http://isvat.appspot.com/'.$country.'/'.$vatnum.'/'; $response = file_get_contents($url); //global $a, $b; if( $response == 'true' ){ echo $a; } else { echo $b; } exit; } ?> <form method="post" id="form1"> <input name="n" type="text" id="n" /> <input value="validate" type="submit"> </form> <script type="text/javascript"> // when form submitted document.getelementbyid('form1').addeventlistener('submit', function(e){ e.preventdefault(); var n = document.getelementbyid('n').value; // textbox value var xmlhttp = new xmlhttprequest(); var params = 'n=' + n; var php_url = document.url; xmlhttp.open('post', php_url, true); xmlhttp.setrequestheader("content-type", "application/x-www-form-urlencoded"); xmlhttp.onreadystatechange = function() { if (xmlhttp.readystate == 4 && xmlhttp.status == 200) { var response = xmlhttp.responsetext; alert(response); // alert server response } } xmlhttp.send(params); }); </script>

javascript php html web

Comments

Post a Comment

Popular posts from this blog

xslt - DocBook 5 to PDF transform failing with error: "fo:flow" is missing child elements. Required content model: marker* -

xslt - DocBook 5 to PDF transform failing with error: "fo:flow" is missing child elements. Required content model: marker* - i've inherited doc publishing process takes docbook , builds html , pdf output, using apache fop both. project had been started, never completed. lots of tweaking, i've able of doc sets build (20+), except handful, , fail severe code 1 of these 2 conditions: "fo:flow" missing kid elements. required content model: marker* "fo:block" not valid kid of "fo:root" the xml output comes out of docbook , docbook-fop checks out well-formed. the fop error in 1 book, "endecagloss", example, points end of string: <fo:flow flow-name="xsl-region-body" start-indent="4pc" end-indent="0pt"/> here’s log output in case: [java] severe: javax.xml.transform.transformerexception: file:/scratch/publishing/hudson/jobs/build-main-endeca-documentation/workspace/serverdoc/w...
Read more

mediawiki - How do I insert tables inside infoboxes on Wikia pages? -

mediawiki - How do I insert tables inside infoboxes on Wikia pages? - i want insert tables in infoboxes. example, have proteinbox i've developed using infobox template (http://health-and-medicine.wikia.com/wiki/template:proteinbox), , fasta field big fit comfortably in proteinbox. hence collapsible table within box. this tried: {{infobox | row 1 = {| class = "mw-collapsible mw-collapsed wikitable" |- | <!-- table content --> |} }} your problem is, putting nested table within template. pipe characters ( | ) in table syntax collides pipe usage in templates. the commonly used hack around create template called template:! , containing pipe character, , utilize when need set tables, parser functions or other stuff using pipe characters, within templates. table (with every | replaced {{!}} ): {{{!}} {{!}}- {{!}} a1 {{!}} b1 {{!}}- {{!}} a2 {{!}} b2 {{!}}} ...the equivalent of {| |- | a1 | b1 |- | a2 | b2 |} furthermore, hav...
Read more

Local Service User Logged into Windows -

Local Service User Logged into Windows - i created windows service tracks app server user connected through load balancer. it retrieves user logged windows on machine, cross references active directory (ad) business relationship homecoming first name, lastly name , e-mail (for notification through website created project) there 1 scheme on network users remote system, vista system, reason returning values "local service" logged machine, it's weird , security guys impossible "local service" business relationship logged windows. here how user logged windows managementscope ms = new managementscope("\\\\.\\root\\cimv2"); objectquery query = new objectquery("select * win32_computersystem"); managementobjectsearcher searcher = new managementobjectsearcher(ms, query); foreach (managementobject mo in searcher.get()) { _username = mo["username"].tostring(); } // remove domain part username string[] usernameparts = _...
Read more