[SOLVED] php include failing

stockton · 08-14-2018, 09:10 AM

I have the following HTML

Code:

<!DOCTYPE HTML>
<html>
<head>
<title>Solar System</title>
<META HTTP-EQUIV="Pragma" CONTENT="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<META HTTP-EQUIV="Expires" CONTENT="-1">
<meta http-equiv="expires" content="Mon, 22 Jul 2000 11:12:01 GMT">
<meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width, height=device-height, target-d
ensitydpi=device-dpi" />
<link href="css/mobile.css" rel="stylesheet" type="text/css" media="only screen and (max-device-width: 480px)" />
<link href="css/index.css" rel="stylesheet" type="text/css" media="only screen and (min-device-width: 480px)" />
</head>
<body>
<?php echo getcwd(); ?>	
<?php require ('./LastLine.php'); ?>
<center>
<div id="loadingNode"></div>
</center>
</body>
</html>

and I wish to include the following php script into it

Code:

<?php
    $filename = "/media/pi/MyPassport/Axpert/solar.log";       // file to read
    $max_len = 110 + 1;             // define the max length of the line to read
    $buff; // [$max_len + 1];             // define the buffer and allocate the length

    if (($fd = fopen($filename, "rb")) != NULL)
        {
        fseek($fd, -$max_len, SEEK_END);            // set pointer to the end of file minus the length you need.
                                                  //     Presumably there can be more than one new line caracter
        $buff = fread($fd, $max_len-1);            // read the contents of the file starting from where fseek() positioned us
        fclose($fd);                               // close the file
        }
    else
        printf("%s %d FileOpen error\n",__FILE__, __LINE__);
    $last_newline = strstr($buff, 'IGS ');
    sscanf($last_newline, "%s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s", $command, $voltage_grid, $freq_grid, $voltage_out, $freq_out, $load_va, $load_watt, $load_percent, $voltage_bus, $voltage_batt, $batt_charge_current, $batt_capacity, $temp_heatsink, $pv1, $pv2, $scc, $batt_discharge_current);
        printf("\tAC Grid voltage: %s\n", $voltage_grid);
        printf("\tAC Grid frequency: %s\n", $freq_grid);
        printf("\tAC out voltage: %s\n", $voltage_out);
        printf("\tAC out frequency: %s\n", $freq_out);
        printf("\tLoad [percent]: %s%%\n", $load_percent);
        printf("\tLoad [W]: %s\n", $load_watt);
        printf("\tLoad [VA]: %s\n", $load_va);
        printf("\tBus voltage: %s\n", $voltage_bus);
        printf("\tHeatsink temperature: %s\n", $temp_heatsink);
        printf("\tBattery capacity [percent]: %s%%\n", $batt_capacity);
        printf("\tBattery voltage: %s\n", $voltage_batt);
        printf("\tBattery charge current [A]: %s\n", $batt_charge_current);
        printf("\tBattery discharge current [A]: %s\n", $batt_discharge_current);
        printf("\tPV Input Current [A]: %s\n", $pv1);
        printf("\tPV Input Voltage [V]: %.s\n", $pv2);
?>

The php works fine from the command line and if I disable the include in the HTML it also works.
A look at apache2 configuration appears to be allowing me to use php, so please tell me what I forgot?

michaelk · 08-14-2018, 10:05 AM

Look at the /var/log/apache2/error.log for errors that should help you troubleshoot the problem. The web server typically runs as the apache2 user and may not have permissions to access the log file.

ondoho · 08-14-2018, 01:30 PM

Quote:

Originally Posted by stockton

I wish to include the following php script into it

is that the "./Lastline.php" script? is it indeed in the same directory?
what output do you get from getcwd?

Quote:

The php works fine from the command line and if I disable the include in the HTML it also works.

it's a require, not an include. there are differences.

and what exactly do you see with the require?

Quote:

A look at apache2 configuration appears to be allowing me to use php, so please tell me what I forgot?

do other php scripts work?

NevemTeve · 08-14-2018, 11:22 PM

@OP: You forgot to quote the error message.

astrogeek · 08-15-2018, 01:05 AM

It is not clear to me what you mean when you say that it works if you disable the include. And you have not told us what you see when it "does not work" - any error messages, visible code or a blank page?

As others have asked, do other php scripts work on this server - that is, is php enabled in the apache configs? Does this line produce any visible output?

Code:

<?php echo getcwd(); ?>

Please try to be more complete in your description and provide any error messages that appear in the page, or in the apache logs. Help us help you!

stockton · 08-15-2018, 02:53 AM

I have looked in the apache2 logs and access.log shows that the html is connecting and that is all. The error log shows nothing.
The LastLine.php is in the same directory and I get no output from getcwd.
I have tried both required as well as include and still I get a blank screen.
Not only do other php scripts work including phpinfo but LasLine.php also works if called from command line.
There is no error message just a blank screen.
When I disable the include the html loads.
astrogeek if I had any more information I would certainly share it.
If it helps at all you can try browsing to 196.32.102.29/lcars/solar5.html and if you do look at the page source and tell my why the two php lines are red, implying an error, but what.

NevemTeve · 08-15-2018, 04:56 AM

Please start with something simple, eg:

PHP Code:



<HTML><BODY>
<?php
    phpinfo ();
?>
</BODY></HTML>

michaelk · 08-15-2018, 05:01 AM

Does your code work if you change the file name extension from html to php?

You can also add this php code to see errors too. error_reporting(E_ALL)

I finally was able to test embedded php code on my Pi and it will not run within a html web page unless it has the php extension by default.

stockton · 08-15-2018, 09:38 AM

If I rename solar5.html to solar5.php at least it starts to work. Now to see why my proggie cannot open that file. Probably permission error.
Thank you for your patience and help

stockton · 08-15-2018, 09:41 AM

If I save NevemTeve suggestion as an html it fails but if I alter the suffix to php it works fine.

michaelk · 08-15-2018, 09:44 AM

Check the error.log but would expect a permission error why you can not open the solar.log file.

stockton · 08-15-2018, 10:56 AM

Of course running from the command line my php script manages to access that file fine but not if run from a webpage

NevemTeve · 08-15-2018, 03:09 PM

> if I alter the suffix to php it works fine.

That is the expected behaviour. Keep using the .php extension.