使用PHP回显没有空格的字符串

问题描述：

I have a foreach loop with list of links, and I'm trying to remove the spaces in the strings because I'll be using it as an href. So far, I successfully removed the spaces, but the code I wrote made a wide space before the string. Here's my foreach loop

 <ul class="list grid effect-6" id="grid">
  <?php foreach ($ppmtenants as $ppmtenant): ?> 
         <li><span class="tenant"><a href="<?php echo $this->getURL() ?>catalogsearch/advanced/result/?tenants=<?php echo $ppmtenant['value'] ?>"><?php echo $ppmtenant['label'] ?></a><a href="<?php echo $this->getURL() ?>?___store=
    <?php 
    $ppmtenantnospace = preg_replace('/\s+/','',$ppmtenant['label']);
    echo strtolower($ppmtenantnospace); 
    ?>"></a></span></li>
<?php endforeach; ?>

    </ul>

And below is what I did to remove the spaces. I used preg_replace. Now, the spaces are gone, but it has a wide space before the string.

 <?php 
    $ppmtenantnospace = preg_replace('/\s+/','',$ppmtenant['label']);
    echo strtolower($ppmtenantnospace); 
    ?>

Live example here: http://powerplantv2.jehzlau.net/brands. Screenshot here: http://i.imgur.com/wpQwxso.png

As you can see, if you hover on the images, there's an unwanted space after the ?. There should be no space so that my permalinks will work. If that space disappears, my problem will be solved. But I don't know how to make it disappear. I hope a php expert here can help me. :(

答

The problem is comming from the spaces in your html. To fix, simply move the variable declaration of $ppmtenantnospace above the li output, then echo it in at the correct place:

<ul class="list grid effect-6" id="grid">
    <?php foreach ($ppmtenants as $ppmtenant): 

        $ppmtenantnospace = preg_replace('/\s+/','',$ppmtenant['label']);?>

        <li><span class="tenant"><a href="<?php echo $this->getURL() ?>catalogsearch/advanced/result/?tenants=<?php echo $ppmtenant['value'] ?>"><?php echo $ppmtenant['label'] ?></a><a href="<?php echo $this->getURL() ?>?___store=<?php echo $ppmtenantnospace;?>"></a></span></li>

    <?php endforeach; ?>

</ul>

答

The whitespace is actually in your HTML code You should open the php tag right after =

<ul class="list grid effect-6" id="grid">
  <?php foreach ($ppmtenants as $ppmtenant): ?> 
         <li><span class="tenant"><a href="<?php echo $this->getURL() ?>catalogsearch/advanced/result/?tenants=<?php echo $ppmtenant['value'] ?>"><?php echo $ppmtenant['label'] ?></a><a href="<?php echo $this->getURL() ?>?___store=<?php 
    $ppmtenantnospace = preg_replace('/\s+/','',$ppmtenant['label']);
    echo strtolower($ppmtenantnospace); 
    ?>"></a></span></li>
<?php endforeach; ?>

    </ul>

答

$spaceless_string = strtr($stringwithspaces, array(' ' => ''));

答

Try opening the PHP tag before the newline in your Code

<ul class="list grid effect-6" id="grid">
  <?php foreach ($ppmtenants as $ppmtenant): ?> 
     <li><span class="tenant"><a href="<?php echo $this->getURL() ?>catalogsearch/advanced/result/?tenants=<?php echo $ppmtenant['value'] ?>"><?php echo $ppmtenant['label'] ?></a><a href="<?php echo $this->getURL() ?>?___store=<?php 

     $ppmtenantnospace = preg_replace('/\s+/','',$ppmtenant['label']);
     echo strtolower($ppmtenantnospace); 
     ?>"></a></span></li>
     <?php endforeach; ?>
</ul>

答

have you tried to stick your <?php to your ?___store=? because the 4 spaces before the <?php are not ignored since they are not PHP code but HTML output

使用PHP回显没有空格的字符串

相关推荐