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POIn php, mysql how to run a loop only if record exist
 

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  1. POIn php, mysql how to run a loop only if record exist
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    <p>I have a php script which has series of calculations and FORM RELOADS based on user Selection/Inputs, I need to run these only IF a record ADDITION is done to the table and not on FORM RELOADS, how to run a loop with this condition.</p> <p><strong>my PARTIAL php script bill-detail.php:</strong> HOPE THIS WOULD SUFFICE:</p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;title&gt;Cash Bill Detail&lt;/title&gt; &lt;script language="javascript"&gt; function reload(form) { document.location.href = 'bill-detail.php' } function showecr(str) { if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.open("GET","billecr.php?q1=" + str,false); xmlhttp.send(); } &lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;?php $con = mysql_connect("localhost","svga","a!@#"); if (!$con) { die('Could not connect: ' . mysql_error()); } mysql_select_db("svga", $con); $user = $_SESSION['user']; //&lt;!--------------VALIDATIONS -------------------&gt; echo "&lt;form name='form1'&gt;"; echo "ECR: &lt;input type='text' size='10' maxlength='10' name='ecrn' onchange=\"showecr(this.value);\"&gt;&lt;br&gt;"; echo "Product Type"; echo "&lt;select name='product' onchange=\"reload(this.form);\"&gt;&gt;"; echo "&lt;option value='Gas'&gt;Gas&lt;/option&gt;"; echo "&lt;option value='Others'&gt;Others&lt;/option&gt;"; echo "&lt;/select&gt;"; echo "&lt;/form&gt;"; //---As per user inputs copying value to variables--------------------- $hdr=mysql_query("SELECT * FROM BILLHDR_draft WHERE usr='$user'"); $hdr2=mysql_fetch_assoc($hdr); $numrows=mysql_num_rows($hdr); if ($numrows&gt;0) { $cust_code=$hdr2['Ac_code']; $product=$hdr2['prod_desc']; //--Searching BILL DETAILS TABLE as per the user inputs from BILL HEADER Table------ $recs=mysql_query("SELECT * FROM BILLDTLS WHERE Ac_code='$cust_code' AND Prod_desc='$product'"); while ($rec2=mysql_fetch_assoc($recs)) { mysql_query("INSERT INTO DEMURAGE (DC_No, DC_date, Ac_code, Product_Desc) VALUES ('$rec2[dc]', '$rec2[dcdate]', '$rec2[accode]', '$rec2[product]'"); } } mysql_close($con); ?&gt; </code></pre> <p> </p>
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    1. USuser1114409
    1. USuser1114409
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      1. POIn php, mysql how to run a loop only if record exist
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      1. VTDownMod
    1. COPro tip: You need to run something IF a condition is true. PHP has an `IF` keyword. If you still can't figure out a solution you might want to look at PHP's manual.
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      1. POIn php, mysql how to run a loop only if record exist
      1. USGordonM
    2. COShow your code and the part where the problem is.
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      1. USjuergen d
    3. CO@GordonM You are right IF condition would suffice, but the problem is the if condition will always be true if I am using like IF (num_rows>0){ my calculations }, what i need is this loop should work only once when a record is added and not for every FORM RELOADS.
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      1. USuser1114409
 

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