PHP - Use Of Utf8 Modifier In Regex Crashes Php

Hi there,
I am NOT a PHP coder, but I have a site that is written in PHP and I am getting an error that keeps filling up my site cache and I just cannot figure it out - I know it has something to do with my images on the site, but none of them are out of the ordinary (GIFs and JPEGs, the only character apart from letters or numbers that i have used is the "_" and there are no spaces). I have looked around at the error I am getting - but I will be honest in that I dont really understand what the problem is or how to resolve it. Here is the error I get:

PHP Warning:  preg_match() [<a href='function.preg-match'>function.preg-match</a>]: Unknown modifier 'C' in /home/smcclean/public_html/includes/modules/additional_images.php on line 48

This relates to the following line of code: if(preg_match("/" . $products_image_base . "/i", $file) == 1) {

I would really appreciate a steer as to how I could resolve this.

Many thanks

Only thing I really miss from PHP is "internal" access modifier. Before I was making libraries and extensions in C# (like game frameworks, Tiled implementations, GUI loaders). Now, when I am working on my own PHP framework, I really miss internal, I was using it a lot in C#. Is internal planned to be added in PHP 7 or is it already in PHP 5.6 or it will never be added?

Dear all,

I am new to the forums, with a hope that somebody can point me in the right direction. I am coding a new photo website, and am doing it with PHP to maximize my flexibility. In essence I want to have a set of gallery folder on the server, and the site reads off these folders and automatically generates the required galleries.

My PHP code is below, along with a detail of the exact problem:

  <?php


$main  = "Collections/";  # Location of galleries
$big    = "Large/";  # Location of big versions (subdir within each gallery)
$i  = 0; #Gallery Iterator


#Searching for galleries & Checking only for directories (save them im $galleries array)
$tempgalleries = scandir($main);
    foreach ($tempgalleries as $gallery_iterate)
    { 
if (!is_dir($gallery_iterate))
{
$galleries[]=$gallery_iterate;
}
}


#Iterating galleries. Collecting each gallery's images (saving in $GalleryImages.$i). This creates an image array for each $galleries[$i]
for($i=0; $i<=sizeof($galleries)-1; $i++) 
{
#Making the title nice (from the the directory names)
$GalleryTitles[$i] = str_replace('_',' ', $galleries[$i]);;
$temp_gallery = opendir($main.$galleries[$i]);
#Checking for Images and storing in array if valid
while (false !== ($image = readdir($temp_gallery))) 
{
  if ($image != "." && $image != ".." && $image != rtrim($big,"/") && strstr($image,'.jpg')) 
  {
${$GalleryImages_.$i}[] = $image;
  }
}
#Sorting the images numerically
natsort(${$GalleryImages_.$i});
closedir($temp_gallery);
}


#Better location for the buttons!!

#Printing the galleries and all the html required for naming, separation, etc.. This is also an iteration
for($i=0; $i<=sizeof($galleries)-1; $i++) 
{
echo('<div class="galleries_hidden" id="gallery_'.$i.'"><hr><br><div class="Gallery_Title"><b><i><big>'.$GalleryTitles[$i].'</big></i></b></div><br>');
$folder=$galleries[$i];
foreach(${$GalleryImages_.$i} as $thumb_image)
{
echo  '<a href="'.$main . $folder .'/'. $big . 'large_'. $thumb_image . '" rel="lightbox['.$folder.']" title="'.$folder.'"><img src="' . $main . $folder .'/'. $thumb_image. '" alt="'.$folder.'" class="Gallery_Image" /></a>';
}
echo('</div>');
}

#Making the buttons to cycle the galleries
for($i=0; $i<sizeof($galleries); $i++) 
{
echo('<input type="button" id="gallery_'.$i.'" value="Show '.$GalleryTitles[$i].'" onclick="showgallery(');echo("'gallery_".$i."');");echo('" /><br><br>');
}

?> 

I have managed to make each aspect work, exept one. The last portion, as commented:

#Making the buttons to cycle the galleries
for($i=0; $i<sizeof($galleries); $i++) 
{
echo('<input type="button" id="gallery_'.$i.'" value="Show '.$GalleryTitles[$i].'" onclick="showgallery(');echo("'gallery_".$i."');");echo('" /><br><br>');
}

This piece of code generates buttons which shows one gallery, and hides the rest. This is done by changing the classes of the divs from "galleries_visible" to "galleries_hidden", as applicable. This is done using a javascript declared in the header as follows:

Code: [Select]
<script type="text/javascript">
function showgallery(id)
{
var divall = document.getElementsByTagName("div");
var i=0;

for (i=0;i<divall.length;i++)
{

if(divall[i].className == "galleries_visible")
{
divall[i].className = "galleries_hidden";
}

var showdiv = document.getElementById(id);
showdiv.className = "galleries_visible";

return false;
}
</script>
When I have the button-generating php code below the gallery-generating php code, then the javascript seems to work, by showing and hiding respective galleries. These galleries and their litebox viewer all work normally. However, when putting the button-creator php above the gallery-generator php, then the buttons appear as normal, and the javascript runs, but it cannot find the div with the id it searches for:

Code: [Select]
var showdiv = document.getElementById(id);
showdiv.className = "galleries_visible";
I am confused. The PHP code makes several arrays which stores all the file and folder information, and these arrays are read by the button-generator irrespective of its position (I know this because the buttons are generated based on the content of non-empty arrays).

Why can't the javascript change the gallery-containing divs when they are below the button-containing div?

Any help is greatly appreciated, I just cant seem to find whats wrong!

Kind regards,

Frederik

I have this function I use to simplify things.

function search_string( $needle, $haystack ) {
    if ( preg_match_all( "/$needle/im", $haystack ) || strpos( $haystack, $needle ) ) {
  	return TRUE;
    }
    return FALSE;
}

I keep getting this error in my PHP logs, and it comes in a sequence:

[07-Nov-2020 05:34:14 America/Los_Angeles] PHP Warning:  preg_match_all(): Unknown modifier 'G' in /home/baser-b/public_html/include/functions.php on line 791

[07-Nov-2020 05:34:14 America/Los_Angeles] PHP Warning:  preg_match_all(): Unknown modifier 'g' in /home/baser-b/public_html/include/functions.php on line 791

Meaning, it will come with one with the small g, then three with the big G, then one with the small g, then five with the big G, and so on....

My question is, how can I stop getting this error. It won't show me the functions being called to arrive at this answer, as this is likely an error generated by another function calling this one. I was wondering if anyone knew what to change in the search_string function to stop getting this error, why this error is happening, or why the strange repetitive sequence. Is it someone trying to do a hack? The only variable that would be changeable by a visitor would be the $needle variable, so what could they type that has something to do with 'g' to get this?

Anyway, thanks.

Hi folks,

If thought i finally managed to make a 2 player game with PHP and Jquery but i my whole computer gets stucked when the first player has gets his 2nd turn.

What i basically have are 2 .txt files where both players units are listed. I will read this file into an array. Each unit has a speed key wich value increases when that unit has made an action, i write the new speed to the file and the script runs again.

Heres the script that decides which unit goes first.

Code: [Select]
$time = 0;
$found = 0;
while ($found != 1)
{
foreach ($P1recruit as $p1)
{
if ($found == 1) break;
if ($p1['speed']<$time)
{
$p1['speed'] =  $p1['speed'] * ceil ($time / $p1['speed']);
}

elseif ($p1['speed']==$time)
{
$p1turn = true;
$p2turn = false;
$found ++;
}
}

foreach ($P2recruit as $p2)
{
if ($found == 1) break;
if ($p2['speed']<$time)
{
$p2['speed'] =  $p2['speed'] * ceil ($time / $p2['speed']);
}

elseif ($p2['speed']==$time)
{
$p1turn = false;
$p2turn = true;
$found ++;
}
}


$time ++;

}

Then follows all the HTML to build up the page. The player who has to act gets a form with choices to do with his unit. The other player gets "Opponents turn" in that window.

So in the above code you see $p1turn or $p2turn gets true or false. This is for the Jquery script at the end of all the HTML to tell wich player needs to keep polling the unit files until theres a unit for him to act. Heres the script:

Code: [Select]
if ($p1turn == true)
{
if ($battle['player2'] == $_SESSION['SESS_MEMBER_ID'])
{
echo "
<script type='text/javascript'>

function turnlistener() {
   $('#main').load('battlegetnextunit.php');
};

$(function() {
setInterval('turnlistener()', 5000 );
});

</script>
";
}

}

if ($p2turn == true)
{
if ($battle['player1'] == $_SESSION['SESS_MEMBER_ID'])
{
echo "
<script type='text/javascript'>

function turnlistener() {          $('#main').load('battlegetnextunit.php');
};

$(function() {
setInterval('turnlistener()', 5000 );
});

</script>
";
}
}

Now for the first player (the one who starts the battle) he can act properly. The next player can act, but he still is longpolling the .txt files as the form resets. If he acts withing the 5 seconds (setInterval('turnlistener()', 5000 )) the other player gets his turn again but my whole computer starts strugling and i'm not able to select anything in the form.

Maybe it's like the players get double longpolling the 2nd turn. But i only have the last code once and obviously only 1 of 2 can run as either $p1turn or $p2turn can be true and it can only run for one player.

What could this be? Is doing it this way even possible? I'm trying to figure this out for days now, i really hope someone can help me out.

Thanks!