Substr PHP
I have a string like http://domain.sf/app_local.php/foo/bar/33.
The last characters are the id of an element. Its length could be more than one, so I can not use:
substr($dynamicstring, -1);
In this case, it must be:
substr($dynamicstring, -2);
How can I get the characters after "/bar/" on the string without depending on the length?
To ensure you are getting an immediate section after the bar, use regular expressions:
preg_match('~/bar/([^/?&#]+)~', $url, $matches);
echo $matches[1]; // 33
You can use explode(), like this:
$id = explode('/',$var);
And take the element where you had the id.
You could use explode('/', $dynamicstring) to split the string into an array of the strings inbetween each /. Then you could use end() on the result of this to get the last part.
$id = end(explode('/', $dynamicstring));
Try this:
$dynamicstring = 'http://domain.sf/app_local.php/foo/bar/33';
// split your string into an array with /
$parts = explode('/', $dynamicstring);
// move the array pointer to the end
end($parts);
// return the current position/value of the $parts array
$id = current($parts);
// reset the array pointer to the beginning => 0
// if you want to do any further handling
reset($parts);
echo $id;
// $id => 33
Test it yourself here.
You can use a regular expression to do it:
$dynamicstring = "http://domain.sf/app_local.php/foo/bar/33";
if (preg_match('#/([0-9]+)$#', $dynamicstring, $m)) {
echo $m[1];
}
I tested it out myself before answering. Other answers are reasonable too, but this will work according to your need...
<?php
$url = "http://domain.sf/app_local.php/foo/bar/33";
$id = substr($url, strpos($url, "/bar/") + 5);
echo $id;
Please find the below answer.
$str = "http://domain.sf/app_local.php/foo/bar/33";
$splitArr = explode('/', explode('//', $str)[1]);
var_dump($splitArr[count($splitArr)-1]);
Related
I need help finding something in a variable that isn't always the same, and then put it in another variable.
I know that what I'm looking for has 5 slashes, it starts with steam://joingame/730/ and after the last slash there are 17 numbers.
Edit: It doesn't end with a slash, thats why I need to count 17 numbers after the fifth slash
Assuming what you're looking for looks something like this:
steam://joingame/730/11111111111111/
Then you could use explode() as a simple solution:
$gameId = explode('/', 'steam://joingame/730/11111111111111/');
var_dump($gameId[4]);
or you could use a regex as a more complex solution:
preg_match('|joingame/730/([0-9]+)|', 'steam://joingame/730/11111111111111/', $match);
var_dump($match[1]);
This splits the string into an array then return the last element as the game_id. It doesn't matter how many slashes. It will always return the last one.
$str = 'steam://joingame/730';
$arr = explode("/", $str) ;
$game_id = end($arr);
Following on from what DragonSpirit said
I modified there code so the string can look like
steam://joingame/730/11111111111111
or
steam://joingame/730/11111111111111/
$str = 'steam://joingame/730/11111111111111/';
$rstr = strrev( $str ); // reverses the string so it is now like /1111111111...
if($rstr[0] == "/") // checks if now first (was last ) character is a /
{
$nstr = substr($str, 0, -1); // if so it removes the /
}
else
{
$nstr = $str; // else it dont
}
$arr = explode("/", $nstr) ;
$game_id = end($arr);
Thanks for the help, I've found a solution for the problem. I'm going to post an uncommented version of the code on pastebin, becuase I couldn't get the code saple thing working here.
code
i have a link with the following (varying) structure:
http://website.com/category/product/abc12345
the category- and the productname vary concerning their length, but the id (abc12345) is always located after the last "/" and is about 6-8 chars long.
i tried to extract the link with the following code:
preg_split('/[/]/', $val, $arr);
$narr[] = end($arr);
with val being the link and arr being the array, the result should be pasted in.
narr is the array i want to save to a file later, so it doesn't really matter here. unfortunately, my results are always empty when i try it this way.
I would go for:
$urlParts = parse_url($myUrl);
$parts = explode('/', $urlParts['path']);
$productId = array_pop($parts);
That way, you have no problems with anchors (#content) or query parameters (?id=123)
I'd use preg_match:
if (preg_match('#.*/(.*)#', $val, $match)) {
$result = $match[1];
}
You could also use something as simple as strrpos and substr:
$result = substr($val, strrpos($val, '/') + 1);
Under the following conditions:
The product (abc12345) is always at the end of the url
No querystrings/params
Try the following regular expression:
preg_match('/\/([\w]+)\/?$/', $val, $arr);
$product = $arr[1];
I have a string that looks a little like this, world:region:bash
It divides folder names, so i can create a path for FTP functions.
However, i need at some points to be able to remove the last part of the string, so, for example
I have this world:region:bash
I need to get this world:region
The script wont be able to know what the folder names are, so some how it needs to be able to remove the string after the last colon.
$res=substr($input,0,strrpos($input,':'));
I should probably highlight that strrpos not strpos finds last occurrence of a substring in given string
$tokens = explode(':', $string); // split string on :
array_pop($tokens); // get rid of last element
$newString = implode(':', $tokens); // wrap back
You may want to try something like this:
<?php
$variable = "world:region:bash";
$colpos = strrpos($variable, ":");
$result = substr($variable, 0, $colpos);
echo $result;
?>
Or... if you create a function using this information, you get this:
<?php
function StrRemoveLastPart($string, $delimiter)
{
$lastdelpos = strrpos($string, $delimiter);
$result = substr($string, 0, $lastdelpos);
return $result;
}
$variable = "world:region:bash";
$result = StrRemoveLastPart($variable, ":");
?>
Explode the string, and remove the last element.
If you need the string again, use implode.
$items = array_pop(explode(':', $the_path));
$shotpath = implode(':', $items);
Use regular expression /:[^:]+$/, preg_replace
$s = "world:region:bash";
$p = "/:[^:]+$/";
$r = '';
echo preg_replace($p, $r, $s);
demo
Notice how $ which means string termination, is made use of.
<?php
$string = 'world:region:bash';
$string = implode(':', explode(':', $string, -1));
Here is my string:
**tag:my.domain.com,2011-07-13:/895645783/posts/NHg5XdqFb5b/**
I want to take the last section /NHg5XdqFb5b/ and remove the slashes.
Also are there any tools available to attemtp to work this out?
You can do this by:
<?php
$id = explode("/", "**tag:my.domain.com,2011-07-13:/895645783/posts/NHg5XdqFb5b/**");
$myID = $id[count($id)-2];
?>
Or if you want to use regex: (make sure all ids are 11 in length)
preg_match("/[a-zA-Z0-9]{11}/i", "**tag:my.domain.com,2011-07-13:/895645783/posts/NHg5XdqFb5b/**", $matches);
echo($matches[0]);
You could do a preg_replace http://ch.php.net/preg_replace
$var = preg_replace('~.*/([^/]+)/\*\*~','$1',$var);
You can use explode, which will split the string and return an array
$arr = explode("/", your_string_here); //split string by "/"
$id = $arr[count($arr) - 2]; //in your case, get the second-last part
Alternatively,
$arr = preg_match("\/posts\/(.*?)\/", your_string_here); //matches /posts/NHg5XdqFb5b/
//$arr[0] = whole match
//$arr[1] = 1st capture group (part between brackets) in your regex, i.e. required id
$id = $arr[1];
Cheers,
I would like to split a string at the first line break, instead of the first blank line
'/^(.*?)\r?\n\r?\n(.*)/s' (first blank line)
So for instance, if I have:
$str = '2099 test\nAre you sure you
want to continue\n some other string
here...';
match[1] = '2099 test'
match[2] = 'Are you sure you want to continue\n some other string here...'
preg_split() has a limit parameter you can take to your advantage. You could just simply do:
$lines = preg_split('/\r\n|\r|\n/', $str, 2);
<?php
$str = "2099 test\nAre you sure you want to continue\n some other string here...";
$match = explode("\n",$str, 2);
print_r($match);
?>
returns
Array
(
[0] => 2099 test
[1] => Are you sure you want to continue
some other string here...
)
explode's last parameter is the number of elements you want to split the string into.
Normally just remove on \r?\n:
'/^(.*?)\r?\n(.*)/s'
You can use preg_split as:
$arr = preg_split("/\r?\n/",$str,2);
See it on Ideone
First line break:
$match = preg_split('/\R/', $str, 2);
First blank line:
$match = preg_split('/\R\R/', $str, 2);
Handles all the various ways of doing line breaks.
Also there was a question about splitting on the 2nd line break. Here is my implementation (maybe not most efficient... also note it replaces some line breaks with PHP_EOL)
function split_at_nth_line_break($str, $n = 1) {
$match = preg_split('/\R/', $str, $n+1);
if (count($match) === $n+1) {
$rest = array_pop($match);
}
$match = array(implode(PHP_EOL, $match));
if (isset($rest)) {
$match[] = $rest;
}
return $match;
}
$match = split_at_nth_line_break($str, 2);
Maybe you don't even need to use regex's. To get just split lines, see:
What's the simplest way to return the first line of a multi-line string in Perl?