Convert value from HTML input tag as a string in PHP

Question

I'm trying to get the value from this HTML input tag :

<form name="form" action="" method="post">
<input name="search" id="search" type="text" class="typeahead" />
</form>

and SpellCorrector::correct function in the following PHP get the value as a string, because it's only accept value from a string type :

<?php
$box = $_POST("search");
include 'SpellCorrector.php';
$correct = SpellCorrector::correct($box);
echo $correct;
?>

The code above isn't working, so I guess I should find a way to convert the $box variable into string type but I don't know how to. Or maybe there's a better solution for my problem.

I'm using this for SpellCorrector.php file

Tosho Trajanov · Accepted Answer · 2016-06-23 20:25:39Z

1

You have a syntax error in the PHP part of the code. $_POST returns array and you should access it that way. Use $box = $_POST["search"] instead.

<?php
    $box = $_POST["search"];
    include 'SpellCorrector.php';
    $correct = SpellCorrector::correct($box);
    echo $correct;
?>

answered Jun 23, 2016 at 20:25

Tosho Trajanov

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5 Comments

Fauzi O Over a year ago

Same method as above, not working. Undefined index: search comes out

Tosho Trajanov Over a year ago

How are you submitting the form? You are missing submit button in the HTML snippet you shared.

<form name="form" action="" method="post"> <input name="search" id="search" type="text" class="typeahead" /> <input type='submit' value="Send" name="submit" /> </form>

Then, since the action attribute is "" I assume you are handling them in the same .php file. You should check if isset($_POST['submit']) before trying to get the $_POST['search']

Tosho Trajanov Over a year ago

Copy paste the whole file so I would be able to assist further

Fauzi O Over a year ago

now I know operator isset is really useful, anyway, can I submit the form without using the submit button? thanks @ToshoTrajanov

Tosho Trajanov Over a year ago

Glad you fixed it!

Shank · Accepted Answer · 2016-06-23 20:24:42Z

1

You need Square brackets. []

<?php
$box = $_POST["search"];
include 'SpellCorrector.php';
$correct = SpellCorrector::correct($box);
echo $correct;
?>

answered Jun 23, 2016 at 20:24

Shank

1,41812 silver badges33 bronze badges

1 Comment

Fauzi O Over a year ago

It turns out to be Undefined index : search

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