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POChecking to see if a query is not null or an empty string
 

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  1. POChecking to see if a query is not null or an empty string
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    <p>I am working on a search function on my website and i am onto doing a next and previous feature, displaying 16 results per page. I have to check if my query isnt null or an empty string however i am no good at if statements as such and i am guessing i have to do one? I am using AJAX for the click functions of next and previous but doing all the calculations in PHP. I guess to do this first query, i have to use an if statement? This is what i have so far.. I don't know which query to check for that is null or an empty string.</p> <p>This is the function i am working on. I am looking to create an if statement to check if query isnt null but unsure how? Any help would be greatly appreciated:</p> <pre><code>public function keywordAction() { $this-&gt;view-&gt;layout()-&gt;disableLayout(); $this-&gt;_helper-&gt;viewRenderer-&gt;setNoRender(TRUE); $session = new Zend_Session_Namespace("keyword"); $search = ""; if(isset($session-&gt;search)) { $search = $session-&gt;search; } if { } } </code></pre> <p>This is the AJAX code i have for the function:</p> <pre><code>$(".paginator").click(function(){ var action = $(this).attr("action"); var page = $("#pageNo").val(); var pageint = parseInt(page); var request = $.ajax({ url : "/support/keyword/", dataType : "JSON", type : "POST", data : { action : action, page : pageint, itemsperpage : parseInt($("#itemsperpage").val()) } }); request.done(function(response){ if(response.error != undefined) { window.location = "/"; } if(response.results != undefined) { $("#output").html(response.results); } if(response.disable != undefined) { if(/1/i.test(response.disable)) { $(this).hide(); } } if(response.undisable != undefined) { if(/1/i.test(response.undisable)) { if(/next/i.test(action)) { $("#previous").show(); } else { $("#next").show(); } } } if(response.resultsstring != undefined) { $("#resultsstring").html(response.resultsstring); } }); }); </code></pre>
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      1. PTAnswer
    1. This table or related slice is empty.
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    1. USash
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

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