what causes pieces of code not to run?

dougmcc1

The code below isn't outputting anything after the first echo statement. Is there an error in the code or is there something else going on that's preventing the code from being run after the first echo statement?

Here's the code:

$local_file="/var/www/html/admin/datafeeds/123.txt";
$readfile=fopen($local_file,"r");
$data = fread($readfile, 10000000);
echo "something";

$data=str_replace("\r\n","\n",$data);
echo $data;

$array_rows=explode("\n",$data);
$rows_count=count($array_rows);
echo "rows count is $rows_count<BR><BR>";

halojoy

hi
Can be number of reasons.
To possibly find out what happens or not happens
you should set error_reporting into 'DEBUG mode'.
This will give notices, even if is not really an error.

Try this ( I always use this when working with php)

<?php
error_reporting(E_ALL); // DEBUG Setting - show all php notices

$local_file="/var/www/html/admin/datafeeds/123.txt";
$readfile=fopen($local_file,"r");
$data = fread($readfile, 10000000);
echo "something";

$data=str_replace("\r\n","\n",$data);
echo $data;

$array_rows=explode("\n",$data);
$rows_count=count($array_rows);
echo "rows count is $rows_count<BR><BR>";

bradgrafelman

In addition to setting error_reporting to the max, make sure that display_errors is set to On.

Also, if you're just trying to read the entire file into a variable, you can simply use one function, namely [man]file_get_contents/man instead.

Weedpacket

As bradgrafelman says, there are better ways of reading in a file, and they don't involve preallocating near on ten megabytes of memory first.

dougmcc1

Thanks for the replies.

Error reporting was already turned on and set to max. No errors are outputted.

My web host increased the memory limit of my scripts and now this script runs but it doesnt output the contents of the file. In other words, I'm not getting the "page cannot be displayed" error, but instead I'm getting a blank page with no output at all even from an echo statement.

Here's the code:

$local_file="/var/www/html/admin/datafeeds/123.txt";
/
$readfile=fopen($local_file,"r") or die("Couldn't open the datafeed<BR>");
$data = fread($readfile, 150000000) or die("Couldn't read the datafeed<BR>");
/
$data=file_get_contents($local_file,false);
$data=str_replace("\r\n","\n",$data);
echo $data;
echo "<p>Here is the data that was imported into the database:</p><table>$rows</table>";

scross

check that the file exists using file_exists() and check its permissions

MarkR

Does it also fail on your dev server? Does the code work on the server when run from the PHP CLI?

It could be an issue with your production server hosting environment. If you can't reproduce it on your dev server, and you have all error reporting set to the max, you may want to contact your production server's support team.

fopen() should always EITHER succeed or fail with a warning message, never do anything else.

Mark

dougmcc1

I'm not using fopen anymore. The datafeed exists and the permissions are 644.

Sometimes I do get output but it isn't complete. When I do get output this is what it looks like:

4
Conn

What is going on here?? I thought this project would be so easy...

Here is the code I'm using now.

$local_file="/var/www/html/admin/datafeeds/6040.txt";
/
$readfile=fopen($local_file,"r");
$data = fread($readfile, 10000000);
/
$data=file_get_contents($local_file,false);

echo "something";

$data=str_replace("\r\n","\n",$data);

/
$array_rows=explode("\n",$data);
$rows_count=count($array_rows);
echo "rows count is $rows_count<BR><BR>";
/
//echo $data;

$data=str_replace("\n","|",$data);
echo "Data is:<BR><BR> $data";
/*
$array_tabs=explode("|",$data);
$tabs_count=count($array_tabs);

//make sure the report is complete first by seeing if it has a totals row at the end
$x=0;
$rows="";
while ($x < $tabs_count) {

$rows.="<tr>";
$sku = $array_tabs[$x];
$rows.="<td>$sku</td>";
$x++;
$name = $array_tabs[$x];
$rows.="<td>$name</td>";
$x++;
$product_url = $array_tabs[$x];
$rows.="<td>$product_url</td>";
$x++;
$price = $array_tabs[$x];
$rows.="<td>$price</td>";
$x++;
$retail_price = $array_tabs[$x];
$rows.="<td>$retail_price</td>";
$x++;
$url_to_image = $array_tabs[$x];
$rows.="<td>$url_to_image</td>";
$x++;
$url_to_thumbnail_image = $array_tabs[$x];
$rows.="<td>$url_to_thumbnail_image</td>";
$x++;
$commission = $array_tabs[$x];
$rows.="<td>$commission</td>";
$x++;
$category = $array_tabs[$x];
$rows.="<td>$category</td>";
$x++;
$subcategory = $array_tabs[$x];
$rows.="<td>$subcategory</td>";
$x++;
$description = $array_tabs[$x];
$rows.="<td>$description</td>";
$x++;
$searchterms = $array_tabs[$x];
$rows.="<td>$searchterms</td>";
$x++;
$status = $array_tabs[$x];
$rows.="<td>$status</td>";
$x++;
$merchant_id = $array_tabs[$x];
$rows.="<td>$merchant_id</td>";
$x++;
$custom_1 = $array_tabs[$x];
$rows.="<td>$custom_1</td>";
$x++;
$rows.="</tr>";

} //while
*/
echo "<p>Here is the data that was imported into the database:</p><table>$rows</table>";