php - Condition inside variables -


i have example works great:

$text = 'lorem ipsum';  $html = <<<html <div>    <span>$text</span> </div> html;

now how right way option 2 selected:

$val = 2;  $html = <<<html <select>    <option if ($val == 1) {echo 'selected';} >option 1</option>    <option if ($val == 2) {echo 'selected';} >option 2</option>    <option if ($val == 3) {echo 'selected';} >option 3</option> </select> html;

i think work template engine - don`t worry, pretty easy use.

only thing need prepared project composer , after install 1 of template engine (for example picked latté).

install of composer:

php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" php composer-setup.php

after installing latté:

php composer.phar require latte/latte

and on end, can create this:

$latte = new \latte\engine;  $latte->settempdirectory('/path/to/tempdir');  $parameters['val'] = 2;  $html = $latte->rendertostring('template.latte', $parameters);

and put content file "template.latte" in same directory:

<select> {foreach [1, 2, 3] $key}     <option {if $val === $key}>option {$key}</option> {/foreach} </select>

this solution used professionals many reasons:

  1. put logic , rendering side side, not mixed things up.
  2. all variables automatically escaped (to avoid xss)
  3. dry (do not repeat yourself) principe, row option should written once

btw should use triple equals in condition in php (compares type of variable). more safe , can save lot of time of debug using principle :-).


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