PHP - How To Extract A Substring

Hello,

Does anyone know how to get a substrig by referencing other substrings around it?

Ie, my string is the following:

These are my favorite foods:
 <ul>
   <li id="1"> Pizza </li>
   <li id="2"> Burgers </li>
   <li id="three"> Hot Dogs </li>
 </ul>
I need to get the ID of each list item, i know they will always follow "<li id=".
I also need to get the text of each list item, i know they will always be before "</li>"

Thanks!

Let's say I have the string "Bob is my friend. Bob likes to eat apples. Goodbye!".

I give a function that string, and the two strings "Bob" and "apples". It returns "Bob likes to eat apples". I seem to have trouble making this function.
If I wanted it to return "Bob is my friend. Bob likes to eat apples" that would be much simpler, but I am trying to get the smallest amount of characters between the two strings.

I tried doing this, but seem to either get stuck on an infinite loop or return the entire inputted string.
Code: [Select]
function between($strIn, $str1, $str2){
$pos2 = stripos($strIn, $str2);
$pos = 1;
$strStore = "";
while($pos>0 && $pos<$pos2){
$pos = stripos($strIn, $str1);
$strStore = substr($strin, $pos, $pos2-$pos);
$strIn = substr_replace($srtIn, $strtemp, "");
}
return $strStore;
}

What it does it finds the first occurrence of "apples" ($str1) and then keeps finding and deleting every occurrence of "Bob" ($str2) until the position of "Bob" surpasses the position of "apples".

As you can tell, it doesn't work. Could anyone help me out, or tell me what I am doing wrong?

This topic has been moved to JavaScript Help.

http://www.phpfreaks.com/forums/index.php?topic=308768.0

Hey all,

I have method like this:

Code: [Select]
echo tinymce_tag($post->body);

Basically the body property contains a string from database containing one or many paragraphs delimited by p tags:

Code: [Select]
<p>Hello World.</p>
<p>Goodbye World.</p>

I want to give all the paragraphs a class. This function will give the first p tag a class:

Code: [Select]
if ( ! function_exists('tinymce_tag')){
function tinymce_tag($content = ''){

$pos = strpos($content, '<p>');

if($pos !== false){
$content = substr_replace($content,' class="paragraph_styler"', 2, 0);
}
return $content;
}
}

But I am not sure how to give all the p tags in the content variable a class.

Thanks for response.

I know you can use str_replace to replace a value with another value, or an array of values with an array of other values. What I'd like to do is replace each instance of a single value with an array of values which get iterated through for each instance found. Think prepared statements that you don't have to call setString or setInt on. Here's a made up example.
Code: [Select]
$db->query = 'SELECT * FROM users WHERE user_name = ? AND user_role = ?;
$db->params = array('hopelessX','admin');
$db->executeQuery(); //this contains a call to a private function that does the replace

I have everything else working except this. It works if I specify an array of values to replace and do something like below, but I was hoping to not have to support that method of replace if I didn't need to.
Code: [Select]
$db->query = 'SELECT * FROM users WHERE user_name = :name AND user_role = :role;
$db->replace = array(':name',':role');
$db->params = array('hopelessX','admin');
$db->executeQuery(); //this contains a call to a private function that does the replace

I can do it that way if I need to or I could make some overly complicated thing that finds each instance of the question mark, replaces it with a unique value and then adds that unique value to a replace array similarly to the method in code block two but that defeats to the purpose of making this simple database adapter in the first place (although it was mostly just for fun anyway).

Anyway, if anyone has any advice and knows of a simple means to achieve this goal that would be much appreciated.
Thanks in advance

This topic has been moved to PHP Regex.

http://www.phpfreaks.com/forums/index.php?topic=321386.0

Hi,

I have an html page with multiple image tags inside it.

I'm wanting to get the full URL of a specific image within that file.

The specific image I'm looking for must start with 'http://www.mysite.com/images/' in the src part of the tag to make sure I'm getting the correct image.

To find the occurence, I'm using strpos() to find the character position of the string match.

What I then need to do is complete the rest of the URL to get the image name and then output this.

So basically I need to get the string that comes after 'http://www.mysite.com/images/' and end when the speech mark occurs to close the src part of the image tag.

This will then give me the full URL of my image.

How do I do this? Or is there a better way to do this?

Thanks.

If I explode a string well using a substring when I implode that substring is now missing.

for example.
Code: [Select]
$exploded = explode("[MAC]",$data);

$data = implode($exploded);
Now [MAC] would be missing in the $data string. any way to get around this?

Folks,

from the below code, i want to extract value of the  [template_path]  in  a Variable.   The value that i want to extract is " /home/ae1df/public_html/master/proae2/gdfcart/templates/default-black/".

I tired to do   $this->template_path but seems not working,

Can anyone help please?

Here is the Code >>>
Savant3_Error: Array ( [code] => ERR_TEMPLATE [info] => Array ( [template] => sidebar-left.tpl ) [level] => 256 [trace] => Array ( [0] => Array ( [file] => /home/ae1df/public_html/master/proae2/gdfcart/includes/template.php [line] => 1298 [function] => __construct [class] => Savant3_Error [object] => Savant3_Error Object ( [code] => ERR_TEMPLATE [info] => Array ( [template] => sidebar-left.tpl ) [level] => 256 [trace] => Array *RECURSION* ) [type] => -> [args] => Array ( [0] => Array ( [code] => ERR_TEMPLATE [info] => Array ( [template] => sidebar-left.tpl ) [level] => 256 [trace] => 1 ) ) ) [1] => Array ( [file] => /home/ae1df/public_html/master/proae2/gdfcart/includes/template.php [line] => 1121 [function] => error [class] => Savant3 [object] => Savant3 Object ( [__config:protected] => Array ( [b][template_path] => Array ( [0] => /home/ae1df/public_html/master/proae2/gdfcart/templates/default-black/ [/b][1] => ./ ) [resource_path] => Array ( [0] => /home/ae1df/public_html/master/proae2/gdfcart/includes/tmpl/resources/ ) [error_text] => template error, examine fetch() result [exceptions] => [autoload] => [compiler] => [filters] => Array ( ) [plugins] => Array ( ) [template] => [plugin_conf] => Array ( ) [extract] => [fetch] => /home/ae1df/public_html/master/proae2/gdfcart/templates/default-black/error.tpl [escape] => Array ( [0] => htmlspecialchars ) ) [banner] => stdClass Object ( [header] => stdClass Object ( [banner] => [count] => 0 ) [left_box] => stdClass Object ( [banner] => [count] => 0 ) [right_box] => stdClass Object ( [banner] => [count] => 0 ) [hometop] => stdClass Object ( [banner] => [count] => 0 ) [homebottom] => stdClass Object ( [banner] => [count] => 0 ) ) [template] => default-black [site] => stdClass Object ( [name] => Paintball Mall [slogan] => This is Master Installation [url] => http://gdfcartophily.co.uk/ [disclaimer] => CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON EU SARL. THIS CONTENT IS PROVIDED "AS IS" AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY()
Many Thanks
[/code]

So I make a colum in my table called "friends"

Is there a way to update using mysql that colum for each user, so let's say friend 1 adds friends 2 with the id of 25

so the query puts the id "25" into the friends column, then if friend 1 adds friend 5 with the id of 26 it puts "26" into the friends column and so on...

So it would have like commas in the colum, 25,26,30,31,31 and all those represent the id's of the person who is wanting to add people to his friends list!


If so how do I accomplish that, and then what If I want to use mysql to list all those id's and Code: [Select]
SELECT name,avatar,etc from userstable WHERE id = "25,26,3,31,31"
Is this even possible or am i thinking to harD?

or need to extract all h1 tags and insert into database
You can modify this code to make it work?
//////////////////////////////////////////////////////////////////
function getTextBetweenTags($tag, $get, $strict=0)
{
/*** a new dom object ***/
$dom = new domDocument;

/*** load the html into the object ***/
if($strict==1)
{
$dom->loadXML($get);
}
else
{
$dom->loadHTML($get);
}

/*** discard white space ***/
$dom->preserveWhiteSpace = false;

/*** the tag by its tag name ***/
$content = $dom->getElementsByTagname($tag);

/*** the array to return ***/
$out = array();
foreach ($content as $item)
{
/*** add node value to the out array ***/
$out[] = $item->nodeValue;
}
/*** return the results ***/
return $out;
}
$content = getTextBetweenTags('h1', $get);

foreach( $content as $item )
{
$h1 = $item.'<br />';
}

$query="UPDATE sitis SET
hh = '$h1' WHERE id = '$a'";


//My  problem and that puts only a h1


regards

What is the difference between EXTR_PREFIX_SAME and EXTR_PREFIX_IF_EXISTS?

I have just noticed that I m allowed to use variables without using the extract function.
like ;
before :
your name is $_POST['name'];

now I m allowed to use ;
your name is $name // I m not using here extract

What can cause this ? How can I switch it off ? Any security problems I can face ?

I draw contents from a database. Some of the texts contain a footnote, which is formatted using a div class. Following the HTML of this:

<div class=""footnotes"">
<br>
<hr align=""left"" noshade=""noshade"" size=""1"" width=""150"" />
      <blockquote> <a href=""#f1"" name=""fn1""> <span class=""superscript""> * </span>

        </a>Some footnotetext</blockquote></div>

Since my bibliography uses data from the database as well, the footnote now appears before the references, but I would like it at the very bottom of the page. I was thinking of using preg_replace in order to separate the textfield into two variables, one for the text itself, the other one for the footnote (it is always just one) and integrate after the bibliography is compiled.    Unfortunately, it seems that the preg_replace does not work. It always displays the whole content of the textfield. Here's the PHP:

$text = preg_replace('/(.*)(\div class=\"footnotes\"\>.*?\<\/div\>)/s', '$1', $result['text']);$footnote = preg_replace('/(.*)(\div class=\"footnotes\"\>.+?\<\/div\>)/s', '$2', $result['text']);

echo '<div align="justify"><span style="font-family:Georgia;font-size:16px;">' . $text;

***BIBLIOGRAPHY***

...

echo $footnote; 

Maybe someone has an idea how to deal with that. I tried it on phpliveregex. There search string works fine. Many thanks for any help.

Hi, I got 1 warning form the server, It said:   Warning: extract() expects parameter 1 to be array, null given in /home/tz005/public_html/COMP1687/edit.php on line 113   extract($row);   how to fix the warning,should I replace it with extract($array);?