PHP parse url for variables

Question

I am building a tool that runs on my localhost that helps to put static webpages together a little faster. Security is not an issue since this is only going to run locally.

First I have an include file called components.php file with variables for page sections like this:

$slide="Pretend this is markup for a Slider";
$port="Pretend this is markup for a set of portfolio images";
$para="<p>Just another paragraph</p>";
$h1="<h1>This is a Header</h1>";

Then my url looks like this:

//only calling 3 of the 4 sections
localhost/mysite/index.php?sections=h1-slide-para

And my index file has this:

include 'components.php'

$sections =  @$_GET['sections'];
$section = explode($sections,"-");
foreach ($section as $row){
echo $row;
}

The goal here is to build the components.php file up with rows I am always using so I can quickly throw page layouts together right from the address bar of my browser. I am just not sure how to echo the variables once I explode them so that index.php contains only the markup I have called from the components.php file.

So what is your question now? How you can access the variables from your components.php file with your $_GET variable ? — Rizier123
– Rizier123, Commented Jul 7, 2015 at 0:09
Put your templaty excerpts into an array, or use $row as variable variable. — mario
– mario, Commented Jul 7, 2015 at 0:13
explode($sections,"-"); should be explode('-', $sections); — Ja͢ck
– Ja͢ck, Commented Jul 7, 2015 at 1:29

Rizier123 · Accepted Answer · 2015-07-07 01:00:34Z

2

This should work for you:

Just use variable variables to access the variables from your components.php file (Also switch the arguments in explode(), they are the wrong way around), e.g.

$section = explode("-", $sections);

foreach ($section as $row) {
    echo $$row;
       //^^ See here the double dollar sign
}

An alternative solution would be to change your file to ini format, e.g.

slide="Pretend this is markup for a Slider"
port="Pretend this is markup for a set of portfolio images"
para="<p>Just another paragraph</p>"
h1="<h1>This is a Header</h1>"

And then get it into an array with parse_ini_file():

$arr = parse_ini_file("components.ini");
                                //^^^ Note, that you now work with an .ini file    

$sections =  @$_GET['sections'];
$section = explode("-", $sections);
foreach ($section as $row) {
    echo $arr[$row];
}

edited Jul 7, 2015 at 1:00

answered Jul 7, 2015 at 0:17

Rizier123

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Comments

Ja͢ck · Accepted Answer · 2015-07-07 01:29:02Z

1

Place your strings into an array:

$sections = [
    'slide' => "Pretend this is markup for a Slider",
    'port' => "Pretend this is markup for a set of portfolio images",
    'para' => "<p>Just another paragraph</p>",
    'h1' => "<h1>This is a Header</h1>",
];

Then, reference those sections by name:

foreach (explode('-', $_GET['sections']) as $section){
    echo $sections[$section];
}

edited Jul 7, 2015 at 1:29

answered Jul 7, 2015 at 1:14

Ja͢ck

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4 Comments

Rizier123 Over a year ago

So used to implode(), that both ways works, but in explode() the delimiter is first :)

Ja͢ck Over a year ago

@Rizier123 Oh crap, that was OP's mistake too, then =/

Rizier123 Over a year ago

yes, I think we can blame the heat for this. It's like 37°C here (= +/- 100°F)

Ja͢ck Over a year ago

It's not that hot here, but the humidity itself is killer :)

Rizier123 · Accepted Answer · 2015-07-07 02:00:49Z

0

firstly instead of

$section = explode($sections, "-");

use

$section = explode("-", $sections);

and also

foreach ($section as $row){
    echo eval('return $'. $row . ';');
}

edited Jul 7, 2015 at 2:00

Rizier123

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answered Jul 7, 2015 at 0:57

user2031301

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