Store PHP variable through HTML button

Question

I am trying to store a PHP session variable through a HTML button. For example I run a FOR loop contains a HTML button and it shows up 5 buttons: A ,B ,C, D, E. I want to click on the button C and it will redirect to a new page that shows up (echo) $C

How could I achieve that?

I have tried the following code:

for($i=0;$i<count($hashtag);$i++){ 

 echo '<button type="submit" name="insert" value="';    

 $_SESSION["hashtag_search"]=$hashtag[$i]; 

 echo '"><span class="label label-danger" ><a target="_blank" href="http://link.net/search-hashtag.php">'.$hashtag[$i].' ('.$hashtag_count[$i].')</a></span></button>';

}

on the search-hashtag.php i got

echo $_SESSION["hashtag_search"];

but the SESSION variable would store the last $hashtag[$i] (when $i maxed) not the $hashtag[$i] of the clicked button

You cannot ask for the code directly here.You'll haveto show us what is the code that you've tried and then ask it here for more info on how to ask question see help center. — Black Mamba
– Black Mamba, Commented Apr 5, 2017 at 3:34
it always store the last bcz session variable doesn't change at all u r always doing $_SESSION["hashtag_search"]=$hashtag[$i]; so at last in for loop session always store the last $hashtag[$i] — Kishan Oza
– Kishan Oza, Commented Apr 5, 2017 at 5:04

SunriseM · Accepted Answer · 2017-04-05 03:53:20Z

1

You are defining the session in each loop so it won't work. You should use a GET Method to send the variable.

index.php

<a target="_blank" href="http://link.net/search-hashtag.php?hashtag='.$hashtag[$i].'">

search-hashtag.php

$a = $_GET["hashtag"];
echo($a);

answered Apr 5, 2017 at 3:53

SunriseM

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3 Comments

Minh Hữu Quang Nguyễn Over a year ago

i tried your method but got a blank page ( i got a issue with my error_log not appearing )

Minh Hữu Quang Nguyễn Over a year ago

oh got it it's the problem with the hashtag itself ( the hashtag block the url ). Thank you !

SunriseM Over a year ago

you should also change your for loop to foreach($hashtag as $value). Documentation here link

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