Experimental Physics and
Industrial Control System
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| <== Date ==> | <== Thread ==> |
|---|
| Subject: | php module |
| From: | Christophe Moins <[email protected]> |
| To: | [email protected] |
| Date: | Thu, 25 May 2006 09:26:15 +0200 |
I am using currently the php module to display value on a web browser.
The program reads first the content of a file to get the whole list of process variables and afterwards performs a ca_get for each of them to know their value.
Times to times, the browser tries to download the page with all the values, but does not succeed and I have got a message saying "the document contains no data" although some data should be available.
The listing of the php script is the following :
<html>
<body>
<meta http-equiv="refresh" content="60" /> <?php
#interface with Epics Iocs to know the values
# of variables stored in the data file associated to the unit
#load external module
dl("php_epics.so");
$unitName = $_GET["unit"];
$fileName = $_GET["fileName"];
echo "<h1>VALUES OF ".$unitName."</h1>";#file parsing to get the variable names list
include 'GetList.php';
$variableIdent = array("record","sensor","ai","bi");
$variableList = GetList($fileName,$variableIdent);
$nbVar = count($variableList);
for ($index=0; $index < $nbVar; $index++) {
$variableName = $variableList[$index];
$variableValue = ca_get($variableName);
echo "$variableName $variableValue <BR>";
}
?>
</body>
</html>
And the GetList function is the following one :
<?php
#file parsing to get the variable names list stored in fileName
function GetList($fileName,$variableIdent) {
$file=fopen($fileName,"r");
#$variableNumber = 0;
$variableList = "";
$index = 0;
while(! feof($file))
{
$line = fgets($file);
$variableName = strstr($line,$variableIdent[0]);
if ($variableName != FALSE &&
(strstr($line,$variableIdent[1]) != FALSE ||
strstr($line,$variableIdent[2]) != FALSE ||
strstr($line,$variableIdent[3]) != FALSE ))
{
$rawName = strstr($line,"\"");
$variableName = strtok($rawName, "\"");
$variableList[$index] = $variableName;
$index++;
}
}
fclose($file);
return $variableList;
}
?>Has Anyone ever met such a problem ?
Thanks Christophe
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