Posted in php
7056
5:48 am, August 6, 2021
 

split a string into links using the comma

this is a common function for some field data, lets say you have a string like this.

category one, category two, another category in one field or string

but i want it to display like this

category one, category two, another category

How can i do this consistantly based on the comma?

I think the best way (or at least one easy way) to do this would be to use the explode function in php. As the explode function takes one (or more) character in the string and then splits the string into an array.

PHP - Explode Function

explode(string $separator, string $string, int $limit = PHP_INT_MAX): array

then once its an array we can loop through each element and add this to the format that we require.

also you can remove the trailing comma from the last item with

PHP

$cats_links_html = rtrim($cats_links_html,", ");

PHP

// this splits the string into an array and then loops through the array
$cats = "category one, category two, another category";
$cats_array = explode(",",$cats);
$cats_html = "";
foreach ($cats_array as $cat_key => $cat_value) {
	$cats_html .= "\$cat_key: $cat_key = \$cat_value: $cat_value <br>";
}
echo $cats_html;

// now we can add the links
// also added a trim and urlencode and htmlentities there to make sure we dont have any excess spaces or html breaking / urlbreaking characters in there
$cats_links_html = "";
foreach ($cats_array as $cat_key => $cat_value) {
	$cat_value_urlenc = urlencode(trim($cat_value));
	$cat_value_html_safe = htmlentities($cat_value);
	$cats_links_html .= "<a href='#$cat_value_urlenc'>$cat_value_html_safe</a>, ";
}
echo $cats_links_html;
$cat_key: 0 = $cat_value: category one
$cat_key: 1 = $cat_value: category two
$cat_key: 2 = $cat_value: another category
category one, category two, another category

View Statistics
This Week
203
This Month
1146
This Year
2206

No Items Found.

Add Comment
Type in a Nick Name here
 
Other Items in php
php redirect echo the page id from wordpress sqlite escape string Deprecated: parse_str(): Calling parse_str() without the result argument is deprecated getcwd usage in php to get the current working directory for file includes write to file php save string to file php using preg_match to extract text from elements encode spaces in items passed to url to %20 not + php function load as table - load_as_table turn on or off error reporting php get json with php from a url and display it php convert number with k on the end to full number extract variables from url string php No 'Access-Control-Allow-Origin' header is present on the requested resource. Fatal error: Uncaught Exception: Required extension GD is not loaded. php check if a class exists Uncaught Error: Call to undefined function mb_convert_encoding() get the subdomain name from the domain string in php - sub domain fixing error Call to undefined function simplexml_load_string get the content of a url get the content of a link with php and test if the result is empty php check if url is valid with filter_var php save csv from array to file php export csv from string to browser download convert json string to a php array how to json encode an array in php how to decode xml in php php get file and save it php function to remove the query string from a url using php parse_url function to remove the query string from a url add every value in the load_array array into the out for testing Fix for PHP Warning Trying to get property '*name*' of non-object write the contents of a url into a file with php sqlite fetchArray into another array php return json header and content list_all_array an early stages of list all function that uses an array to pass in main variables replace singular variable assignment with an array loop and variable variables using the $_SERVER['HTTP_REFERER'] to check referring pages timeline class and function php html template class system views list function for checking what views have been made on the current week load array load all items from an array while in a sqlite load sql loop create a 200 character summary from a longer html string using strlen to check the length of a string and do something about it How to record your own page views with PHP, and make them into weekly monthly and yearly charts load from fields array php class function get the current week as a number with php creating embedded php code from a database field test php bundle write check if a file exists with php
Search Code
Search Code by entering your search text above.
Welcome

This is my test area for webdev. I keep a collection of code here, mostly for my reference. Also if i find a good link, i usually add it here and then forget about it. more...

Subscribe to weekly updates about things i have added to the site or thought interesting during the last week.

You could also follow me on twitter or not... does anyone even use twitter anymore?

If you found something useful or like my work, you can buy me a coffee here. Mmm Coffee. ☕

❤️👩‍💻🎮

🪦 2000 - 16 Oct 2022 - Boots
Random Quote
When i was a little kid, I was really scared of the dark. But then I came to understand, dark just means the absence of photons in the visible wavelength -- 400 to 700 nanometers. Then i thought, well, its really silly to be afraid of a lack of photons. Then i wasn't afraid of the dark anymore after that.
Elon Musk
Random CSS Property

hanging-punctuation

The hanging-punctuation CSS property specifies whether a punctuation mark should hang at the start or end of a line of text. Hanging punctuation may be placed outside the line box.
hanging-punctuation css reference