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There are two arrays. It is necessary to display a list from the first array on the page, in which the elements of the second array will be highlighted, for example with a color. Probably it is necessary to read one array in a loop and compare, for example preg_match with the second array and if there is a coincidence - to allocate. Does anyone have a more beautiful solution?
There is an array_intersect function that does pretty much what you need. If you want to compare the elements using regular expressions, try preg_grep, but you will need to prepare the pattern first.
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I am passing two variables from an HMTL form as arrays and i used array combine and for each loop to loop through all the two variables but now i need to pass through 3 variables so it is possible? my current code is below and am getting an error when i add a third variable.
array_combine($firstnumber, $secondnumber) as $firstnum => $secondnum)
{ //do something with the variables }
Use array_merge, to join multiple arrays in PHP.
PHP.net
array_combine — Creates an array by using one array for keys and another for its values
array_merge — Merge one or more arrays
Be aware! The behaviour of both is different.
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How do i assign the successive duplicate values of a string in a single offset of an array In PHP. For example FFF2AA
In array it should be
0=>FFF
1=>2
2=AA
In array format
This post Count consecutive occurence of specific, identical characters in a string - PHP gives you almost your perfect answer. you just have tu use '*' instead of '+' in the regex if you want to take into accounts 1 character strings (like the '2' above).
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I'm trying to generate all possible combinations of a string using PHP. I've searched this site for a while trying to find the right algorithm but I can't seem to find the correct one. To be more specific if i input the string "hi", I want it to return "hi", "ih", "h", "i". But I don't want it to reuse the same characters multiple times. So I wouldn't want "hh" and "ii". Is there an algorithm for this? Thanks!
Dont take this for production:
$string = implode('',array_unique(str_split('helpa')));
$i=0;
while($i++<50000){
$coll[substr(str_shuffle($string),0,mt_rand(1,strlen($string)))]=true;
}
ksort($coll);
print '<pre>';
print_r(array_keys($coll));
Here you can test what you want to get.
In 10000 iteration i was getting 325 combinations from a 5 length string
(what seems all possible combinations)
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I have a string such as this:
10,14.5,3.6,10.4,2
I'd like to round down each number so the result would be this:
10,14,3,10,2
I'm looking for the cleanest and fastest solution? My first thought was to explode them into an array and run a loop and floor each value, but that seems a little clunky to me.
I also thought that maybe using regex to just remove everything after a decimal for each value, but I don't know how to do that or if it's more efficient?
Anyone have any suggestions?
$array = explode(",",'10,14.5,3.6,10.4,2');
$string = implode(",",array_map('floor',$array));
Example
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I have a php array which is created from data in an sql database.
All I want to do is recreate that identical array on another site.
I can print_r it no worries. But how would I output the structure of the array so that I can go as follows on the new site.
$newvar = array(.....);
I'm sure it's a very simply question, But I can't find an answer.
serialize Try this function. I think this is what you need
you can use json_encode to send your array and keep the structure of your array.