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POIntermittent Internal Server Error
 

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  1. POIntermittent Internal Server Error
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    <p>So this is quite strange. Im getting intermittent internal server error messages on some particular pages of my site. </p> <p>I have a fancybox iframe which contains a slider script, which slides between iframes each loading a PHP page (9 iframes/ php pages in total). I know its not particularly good to have iframes inside iframes but it made this particular project much easier to manage.</p> <p>Sometimes one or more of the php pages shows an internal server error. If i reload either the parent page or the iframe it goes away. I really cant figure out why this is happening. It only happens on these pages, and only intermittently. </p> <p>can anyone think of a reason for this happening. Is PHP or Iframe known to cause this problem? If i load the php pages on their own (not in frames) this doesnt happen.</p> <p>Code for the PHP pages is as follows:</p> <p>Code for slider container:</p> <pre><code>&lt;?php if ($pass != "password") { exit('&lt;head&gt; &lt;script type="text/javascript"&gt; &lt;!-- window.location="../index.php"; //--&gt; &lt;/script&gt; &lt;/head&gt;'); } if(isset($_GET['today'])) { if(isset($_GET['mrn'])) { $mrn = $_GET['mrn']; $date = isset($_GET['today']) ? $_GET['today'] : date('Y-m-d'); $dateplus1 = date('Y-m-d', strtotime($date .' +1 day')); $dateminus1 = date('Y-m-d', strtotime($date .' -1 day')); $dateminus2 = date('Y-m-d', strtotime($date .' -2 day')); $dateminus3 = date('Y-m-d', strtotime($date .' -3 day')); $dateminus4 = date('Y-m-d', strtotime($date .' -4 day')); $dateminus5 = date('Y-m-d', strtotime($date .' -5 day')); $dateminus6 = date('Y-m-d', strtotime($date .' -6 day')); echo '### html page containing javacript slider script and iframes (src of iframes uses $dateminus1 etc... to tell the page which date to display in the frame ### '; } else {echo 'error no mrn set';} } else {echo 'error no date set';} ?&gt; </code></pre> <p>Code for pages in slider (same code on every page):</p> <pre><code>&lt;?php $hostname = "localhost"; $username = ""; $password = ""; $database = ""; $connection = mysql_connect($hostname, $username, $password) OR die('Could not connect to MySQL: ' . mysql_error()); mysql_select_db($database); $Search = $_GET['mrn']; $mrn = $_GET['mrn']; $Date = $_GET['date']; $Date2 = date("Y/m/d", strtotime($Date)); $Date3 = date("d/m/Y", strtotime($Date)); $Find_Query2 = mysql_query("SELECT * FROM patients WHERE mrn ='$Search' "); if(!$Find_Query2) { die(mysql_error()); } while($row = mysql_fetch_assoc($Find_Query2)) { $FNAME = $row['fname']; $LNAME = $row['lname']; $MRN2 = $row['mrn']; $DOB = $row['dob']; $WARD = $row['ward']; } date_default_timezone_set('Europe/London'); $Find_Query1 = mysql_query("SELECT DATE_FORMAT(COALESCE(datetime_man, datetime),'%Y/%m/%d %H:%i:%s') AS datetime2, DATE_FORMAT(COALESCE(datetime_man, datetime),'%H:%i on %d/%m/%y') AS datetime3, DATE_FORMAT(COALESCE(datetime_man, datetime),'%H%i%s') AS datetime4, SBP, SBP_R, SBP_B, DBP, DBP_R, DBP_B, HR, HR_R, HR_B, HRreg, RR, RR_R, RR_B, SpO2, SpO2_R, SpO2_B, O2flow, O2flow_R, O2flow_B, O2device, O2deviceOther, TEMP, TEMP_R, TEMP_B, AVPU, AVPU_R, PAR, PAR_B, UO, UO_B, pain_movement, pain_rest, sedation FROM addobs WHERE mrn='$Search' AND DATE(datetime)='$Date' AND NOT hidden = 'yes' order by datetime2 ASC"); if ($Find_Query1) { $ASBP = array(); $ADBP = array(); $AHR = array(); $ARR = array(); $ASpO2 = array(); $AO2flow = array(); $ATEMP = array(); $AAVPU = array(); $APAR = array(); $AUO = array(); $APM = array(); $APR = array(); $ASED = array(); while ($row = mysql_fetch_assoc($Find_Query1)) { $ASBP[] = "['" . $row["datetime2"] . "'," . $row["SBP_R"] . ", 'rgba(" . $row["SBP_B"] . ",0,0,1)', 'Blood pressure was " . $row["SBP"] . "/" . $row["DBP"] . " mmHg at " . $row["datetime3"] . ".'],"; $ADBP[] = "['" . $row["datetime2"] . "'," . $row["DBP_R"] . ", 'rgba(" . $row["DBP_B"] . ",0,0,1)', 'Blood pressure was " . $row["SBP"] . "/" . $row["DBP"] . " mmHg at " . $row["datetime3"] . ".'],"; $AHR[] = "['" . $row["datetime2"] . "'," . $row["HR_R"] . ", 'rgba(" . $row["HR_B"] . ",0,0,1)', 'Heart rate was " . $row["HR"] . " (" . $row["HRreg"] . " rhythm) at " . $row["datetime3"] . ".'],"; $ARR[] = "['" . $row["datetime2"] . "'," . $row["RR_R"] . ", 'rgba(" . $row["RR_B"] . ",0,0,1)', 'Respiratory rate was " . $row["RR"] ." at " . $row["datetime3"] . ".'],"; $ASpO2[] = "['" . $row["datetime2"] . "'," . $row["SpO2_R"] . ", 'rgba(" . $row["SpO2_B"] . ",0,0,1)', 'Oxygen saturations were " . $row["SpO2"] ."% at " . $row["datetime3"] . ".'],"; $AO2flow[] = "['" . $row["datetime2"] . "'," . $row["O2flow_R"] . ", 'rgba(" . $row["O2flow_B"] . ",0,0,1)', 'Patient was on " . $row["O2flow"] ." l/min of supplementary oxygen " . $row["O2device"] . $row["O2deviceOther"] . " at " . $row["datetime3"] . ".'],"; $ATEMP[] = "['" . $row["datetime2"] . "'," . $row["TEMP_R"] . ", 'rgba(" . $row["TEMP_B"] . ",0,0,1)', 'Patient\'s temperature was " . $row["TEMP"] ." degrees celsius at " . $row["datetime3"] . ".'],"; $AAVPU[] = "['" . $row["datetime2"] . "'," . $row["AVPU_R"] . ", 'rgba(1,0,0,1)', '" . $row["AVPU"] . " at " . $row["datetime3"] . ".'],"; $APAR[] = "var msec_" . $row["datetime4"] . " = Date.parse('" . $row["datetime2"] . "'); var x_" . $row["datetime4"] . " = scatter.getXCoord(msec_" . $row["datetime4"] . "); var y_" . $row["datetime4"] . " = 25; var text = new RGraph.Drawing.Text('par', x_" . $row["datetime4"] . ", y_" . $row["datetime4"] . ", '". $row["PAR"] . "').Set('valign', 'top').Set('font', 'Verdana').Set('halign', 'center').Set('size', 10).Set('colors', ['rgb(255," . $row["PAR_B"] . ",0)']).Draw();" ; $AUO[] = "var msec_" . $row["datetime4"] . "_2 = Date.parse('" . $row["datetime2"] . "'); var x_" . $row["datetime4"] . "_2 = scatter.getXCoord(msec_" . $row["datetime4"] . "_2); var y_" . $row["datetime4"] . "_2 = 25; var text = new RGraph.Drawing.Text('uo', x_" . $row["datetime4"] . "_2, y_" . $row["datetime4"] . "_2, '". $row["UO"] . "').Set('valign', 'top').Set('font', 'Verdana').Set('halign', 'center').Set('size', 10).Set('colors', ['rgb(" . $row["UO_B"] . ",0,0)']).Draw();" ; $APM[] = "var msec_" . $row["datetime4"] . "_3 = Date.parse('" . $row["datetime2"] . "'); var x_" . $row["datetime4"] . "_3 = scatter.getXCoord(msec_" . $row["datetime4"] . "_3); var y_" . $row["datetime4"] . "_3 = 25; var text = new RGraph.Drawing.Text('pm', x_" . $row["datetime4"] . "_3, y_" . $row["datetime4"] . "_3, '". $row["pain_movement"] . "').Set('valign', 'top').Set('font', 'Verdana').Set('halign', 'center').Set('size', 10).Set('colors', ['rgb(0,0,0)']).Draw();" ; $APR[] = "var msec_" . $row["datetime4"] . "_4 = Date.parse('" . $row["datetime2"] . "'); var x_" . $row["datetime4"] . "_4 = scatter.getXCoord(msec_" . $row["datetime4"] . "_4); var y_" . $row["datetime4"] . "_4 = 25; var text = new RGraph.Drawing.Text('pr', x_" . $row["datetime4"] . "_4, y_" . $row["datetime4"] . "_4, '". $row["pain_rest"] . "').Set('valign', 'top').Set('font', 'Verdana').Set('halign', 'center').Set('size', 10).Set('colors', ['rgb(0,0,0)']).Draw();" ; $ASED[] = "var msec_" . $row["datetime4"] . "_5 = Date.parse('" . $row["datetime2"] . "'); var x_" . $row["datetime4"] . "_5 = scatter.getXCoord(msec_" . $row["datetime4"] . "_5); var y_" . $row["datetime4"] . "_5 = 25; var text = new RGraph.Drawing.Text('sed', x_" . $row["datetime4"] . "_5, y_" . $row["datetime4"] . "_5, '". $row["sedation"] . "').Set('valign', 'top').Set('font', 'Verdana').Set('halign', 'center').Set('size', 10).Set('colors', ['rgb(0,0,0)']).Draw();" ; } $BSBP = join(" ", $ASBP); $BDBP = join(" ", $ADBP); $BHR = join(" ", $AHR); $BRR = join(" ", $ARR); $BSpO2 = join(" ", $ASpO2); $BO2flow = join(" ", $AO2flow); $BTEMP = join(" ", $ATEMP); $BAVPU = join(" ", $AAVPU); $BPAR = join(" ", $APAR); $BUO = join(" ", $AUO); $BPM = join(" ", $APM); $BPR = join(" ", $APR); $BSED = join(" ", $ASED); } $numCount = mysql_num_rows($Find_Query1); if ($numCount &lt; 1) { $ERROR = ' &lt;div class="errorbox"&gt;&lt;/div&gt;&lt;div class="errorboxint"&gt; &lt;span style="text-align:center; font-family:Verdana, Geneva, sans-serif; font-size:14px; color:#FFF; font-weight:bold"&gt;No Observations Recorded&lt;/span&gt;&lt;/br&gt; &lt;p&gt;Sorry, no results were found for ' .$FNAME . ' ' . $LNAME . ' (d.o.b ' . $DOB . ') on ' . $Date3 . '&lt;/p&gt; &lt;p&gt;&lt;img src="no-obs.png"&gt;&lt;/img&gt; &lt;/p&gt; &lt;/div&gt;'; } ?&gt; ### then follows html page which makes use of arrays to plot information on charts ### </code></pre> <p>Thanks in advance.</p>
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    1. USMatt S
    1. USMatt S
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    1. COit's probably happening because you did something wrong. My crystal ball's at the cleaners right now so I can't say more. Well, not unless you post some code (seeing the code of the scripts which cause the error would be great!)
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      1. POIntermittent Internal Server Error
      1. USDave
    2. CONo, PHP nor iframes are known to cause that problem. Loading a page in an iframe or not should be irrelevant to generating a server error.
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      1. POIntermittent Internal Server Error
      1. USironcito
    3. CO@ironcito the iframes are certainly nothing to do with it. It's a mistake in the PHP scripts. But, without code, we could be here for decades listing all the possible mistakes which could have been made.
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      1. POIntermittent Internal Server Error
      1. USDave
 

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