I would like to use one string inside another string, like this:
$url = "http://www.sample.com/index.php?nr=$string[0]";
how should I insert this string at the end?
$url = "http://www.sample.com/index.php?nr={$string[0]}";
or
$url = "http://www.sample.com/index.php?nr=" . $string[0];
just like your example
$url = "http://www.sample.com/index.php?nr=$string[0]";
As a solution to your problem please try executing following code snippet.
You need to concatenate strings in php using dot operator(.)
$url = "http://www.sample.com/index.php?nr=".$string[0];
Related
I have string variable like ABC/DF/G I want extract DF from it means text between two /.
I have tried like below
$string= "ABC/DF/G";
$code = substr($string ,strpos($string,'/'));
echo $code;
but I am getting result like below
/DF/G
Let me know if someone can help me for do it.
Thanks!
You can use explode function to split a string into an array.
$string= "ABC/DF/G";
$code = explode('/', $string);
echo $code[1];
I have some very long URL variables. Here is one example.
http://localhost/index.php?image=XYZ_1555025022.jpg&mppdf=yes&pdfname=Printer&deskew=yes&autocrop=yes&print=no&mode=color&printscalewidth100=&printscaleheight100=&rand=56039
Ultimately it would be nice if I could find a way to use preg_replace to simply change one variable even if in the middle of the string for instance in the string above change print=no to 'print=yes for example.
I will however settle for a preg_replace pattern match that allows me to delete ?image=XYZ_1555025022.jpg. as this is a variable the name could be anything. It will always have "?image" " at the start and end with "&"
I think one of the problems I have run into is that preg_match seems to have issues on strings with "=" contained in them .
I am completely lost here in this and all those characters make may head spin. Maybe someone can give some guidance please?
Here's a demo of how you can do some of things you want using explode, parse_str and http_build_query:
$url = 'http://localhost/index.php?image=XYZ_1555025022.jpg&mppdf=yes&pdfname=Printer&deskew=yes&autocrop=yes&print=no&mode=color&printscalewidth100=&printscaleheight100=&rand=56039';
// split on first ?
list($path, $query_string) = explode('?', $url, 2);
// parse the query string
parse_str($query_string, $params);
// delete image param
unset($params['image']);
// change the print param
$params['print'] = 'yes';
// rebuild the query
$query_string = http_build_query($params);
// reassemble the URL
$url = $path . '?' . $query_string;
echo $url;
Output:
http://localhost/index.php?mppdf=yes&pdfname=Printer&deskew=yes&autocrop=yes&print=yes&mode=color&printscalewidth100=&printscaleheight100=&rand=56039
Demo on 3v4l.org
You can use str_replace() or preg_replace() to get your job done, but parse_url() with parse_str() will give you more controls to modify any parameters easily by array index. Finally use http_build_query() to make your final url after modification.
<?php
$url = 'http://localhost/index.php?image=XYZ_1555025022.jpg&mppdf=yes&pdfname=Printer&deskew=yes&autocrop=yes&print=no&mode=color&printscalewidth100=&printscaleheight100=&rand=56039';
$parts = parse_url($url);
parse_str($parts['query'], $query);
echo "BEFORE".PHP_EOL;
print_r($query);
$query['print'] = 'yes';
echo "AFTER".PHP_EOL;
print_r($query);
?>
DEMO: https://3v4l.org/npGij
I want to change this url from:
https://lh3.googleusercontent.com/-5EoWQXUJMiA/VZ86O7eskeI/AAAAAAADHGs/ej6F-va__Ig/s1600/i2Fun.com-helpful-dogs-015.gif
to this:
http://3.bp.blogspot.com/-5EoWQXUJMiA/VZ86O7eskeI/AAAAAAADHGs/ej6F-va__Ig/s1600/i2Fun.com-helpful-dogs-015.gif
This is my code, but it's not working as expected:
$link = preg_replace('#^https?://.*?/(.+?/)(s\d+/)?([\w_-]+\.[\w]{3,})?$#i','http://3.bp.blogspot.com/$1s0/$3',$url);
It's a simple string replace.
Search for "https://lh3.googleusercontent.com/". Replace with "http://3.bp.blogspot.com/".
str_replace() will do this. Am I missing something?
$s = "https://lh3.googleusercontent.com/-5EoWQXUJMiA/VZ86O7eskeI/AAAAAAADHGs/ej6F-va__Ig/s1600/i2Fun.com-helpful-dogs-015.gif";
$path = parse_url($s);
echo 'http://3.bp.blogspot.com' . $path['path'];
UPDATE You can don't receive all the parts of an url, but take only the needed part
echo 'http://3.bp.blogspot.com' . parse_url($s, PHP_URL_PATH);
Hi in my url i have variables stored in ../index.php?cat=1#5#8 in so on how to separate them using explode function so out put could be
arr[0]=1
arr[1]=5
arr[2]=8
Try with explode like
$arr = explode("#",$_GET['cat']);
But as #Bora said after # the remaining string will may not be sent ,so better to use '_' in place of '#' (1_5_8_....)and can explode it like
$arr = explode("_",$_GET['cat']);
Try this:
$array=$_GET['cat'];
$result = explode("#",$array);
I have a string that looks a little something like this:
$string = 'var1=foo&var2=bar&var3=blahblahblah&etc=etc';
And I would like to make another string from that, and replace it with a value, so for example it will look like this
$newstring = 'var1=foo&var2=bar&var3=$myVariable&etc=etc';
so var3 in the new string will be the value of $myVariable.
How can this be achieved?
No need for regex; built in URL functions should work more reliably.
// Parse the url first
$url = parse_url($string);
// Parse your query string into an array
parse_str($url['query'], $qs);
// Replace the var3 key with your variable
$qs['var3'] = $myVariable;
// Convert the array back into a query string
$url['query'] = http_build_query($qs);
// Convert the $url array back into a URL
$newstring = http_build_url($url);
Check out http_build_query and parse_str. This will append a var3 variable even if there isn't one, it will URL encode $myVariable, and its more readable than using preg_replace.
You can use the method preg_replace for that. Here comes an example
<?php
$string = 'var1=foo&var2=bar&var3=blahblahblah&etc=etc';
$var = 'foo';
echo preg_replace('/var3=(.*)&/', 'var3=' . $var . '&', $string);