Can I echo multiple html tags containing php variables with a single echo?
Do I really need this many echo's or can I make it shorter?
<?php
if (!empty($url))
{
echo '<p>Job: <span>' . $job .'</span></p>';
echo '<p>Skills: <span class="caps">' . $skills . '</span></p>';
echo '<p>Website: <a href="http://' . $url . '" title="' . $url . '">http://' . $url . '</a></p>';
echo '<p开发者_JS百科>Pay:' . $pay. '</p>';
} else {
echo'';
}
?>
Why not revert it?
<?php if(!empty($url)) { ?>
<p>Job: <span><?=$job?></span></p>
<p>Skills: <span class="caps"><?=$skills?></span></p>
<p>Website: <a href="http://<?=$url?>/" title="<?=$url?>">http://<?=$url?></a></p>
<p>Pay: <?=$pay?></p>
<?php } ?>
Sure, and there's no need for an else that does nothing:
<?php
if(!empty($url)) {
echo "<p>Job: <span>{$job}</span></p>";
echo "<p>Skills: <span class=\"caps\">{$skills}</span></p>";
echo "<p>Website: <a href=\"http://{$url}\" title=\"{$url}\">http://{$url}</a></p>";
echo "<p>Pay: {$pay}</p>";
}
?>
... or even:
<?php
if(!empty($url)) {
echo "<p>Job: <span>{$job}</span></p>
<p>Skills: <span class=\"caps\">{$skills}</span></p>
<p>Website: <a href=\"http://{$url}\" title=\"{$url}\">http://{$url}</a></p>
<p>Pay: {$pay}</p>";
}
?>
You dont need to concatenate multiple lines or revert if you want to use echo. The actual answer to your question is this (because it still uses echo):
<?php
if (!empty($url))
{
echo '<p>Job: <span>' . $job .'</span></p>
<p>Skills: <span class="caps">' . $skills . '</span></p>
<p>Website: <a href="http://' . $url . '" title="' . $url . '">http://' . $url . '</a></p>
<p>Pay:' . $pay. '</p>';
}
?>
Php doesnt care how many lines you use.
I suppose you could either :
- use the dot (
.) for strings concatenation, and use a singleecho - or use several strings in a single
echo, separated by commas ','
See the echo manual page, for examples.
For the first solution :
echo 'a' . 'b' . 'c';
And, for the second :
echo 'd', 'e', 'f';
And the output will be :
abcdef
Another solution would be to use variable interpolation in double-quoted string :
$my_var = "test";
echo "this is a $my_var";
Which will get you :
this is a test
For instance, using a bit of both :
$job = 'my job';
$skills = 'my skills';
$url = 'google.com';
$pay = 3.14;
echo "<p>Job: <span>$job</span></p>"
. "<p>Skills: <span class=\"caps\">$skills</span></p>"
. "<p>Website: <a href=\"http://$url\" title=\"$url\">http://$url</a></p>"
. "<p>Pay:$pay</p>";
You'll get :
Job: my job
Skills: my skills
Website: http://google.com
Pay:3.14
But note that you'll have to escape the ", which is not easy to do :-(
So, yet another solution, based on heredoc syntax :
echo <<<STR
<p>Job: <span>$job</span></p>
<p>Skills: <span class="caps">$skills</span></p>
<p>Website: <a href="http://$url" title="$url">http://$url</a></p>
<p>Pay:$pay</p>
STR;
Only one echo, no string concatenation, no escaping -- what else could one ask for ?
;-)
Of course this would do the job too:
echo '<p>Job: <span>' . $job .'</span></p><p>Skills: <span class="caps"></span></p><p>Website: <a href="http://' . $url . '" title="' . $url . '">http://' . $url . '</a></p><p>Pay:' . $pay. '</p>';
You may add \ns for more readable HTML.
Or you may use this one which is more readable on the PHP side:
echo "<p>Job: <span>{$job}</span></p><p>Skills: <span class=\"caps\"></span></p><p>Website: <a href=\"http://{$url}\" title=\"{$url}\">http://{$url}</a></p><p>Pay:{$pay}</p>";
Or you could use the heredoc syntax which is even more readable:
echo <<<HTML
<p>Job: <span>$job</span></p>
<p>Skills: <span class="caps"></span></p>
<p>Website: <a href="http://$url" title="$url">http://$url</a></p>
<p>Pay:$pay</p>
HTML;
At last you can cut the else branch if you really want to echo - well - nothing.
You can do all that with single echo and concatenation, which is just "." , and yes you ll need one more echo for the else stmt.
you may want to try sprintf. You can do something like:
<?php echo sprintf('<p>Job: <span>%s</span></p>', $job); ?>
I would start using templates if i were you. there are a multitude of templating engines out there.. I highly recommend Smarty. http://www.smarty.net/
This will allow you to separate your code from your display logic. This means that you can choose a different template, or give your template to a designer, who does not need to know anything about php. It will also allow you to go over your code at a later date and easily debug/change it. Nothing worse than trying to read code that has html and php intermingled throughout.
code:
//this part will instigate a copy of smarty
require_once('/location_of_smarty_lib/Smarty/Smarty.class.php');
$blah = new Smarty();
$blah ->template_dir = '/location_of_smarty_lib/smarty/templates';
$blah ->compile_dir = '/location_of_smarty_lib/smarty/templates_c';
$blah ->cache_dir = '/location_of_smarty_lib/smarty/cache';
$blah ->config_dir = '/location_of_smarty_lib/smarty/configs';
//this part assigns variables to tags
$blah->assign('t_url',$url);
$blah->assign('t_job',$job);
$blah->assign('t_skills',$skills);
$blah->assign('t_pay',$pay);
//this will display the out put using the given template
$blah->display('yargh.tpl');
template (called yargh.tpl):
{if $t_url}
<p>Job: <span>{$t_job}</span></p>
<p>Skills: <span class="caps">{$t_skills}</span></p>
<p>Website: <a href="http://{$t_url}/" title="{$t_url}">http://{$t_url}</a></p>
<p>Pay: {$t_pay}</p>
{/if}
This looks like a good opportunity to use printf() so that you don't need to bounce in and out of <?php/?> tags.
Create a clean template string with placeholders with HEREDOC syntax so that you don't need to worry about juggling and escaping quotation marks.
Because you are using the $url variable more than once, use numbered placeholders so make your code more D.R.Y.
$template = <<<HTML
<p>Job: <span>%1$s</span></p>
<p>Skills: <span class="caps">%2$s</span></p>
<p>Website: <a href="http://%3$s" title="%3$s">http://%3$s</a></p>
<p>Pay: %4$s</p>
HTML;
if (!empty($url)) {
printf($template, $job, $skills, $url, $pay);
}
Using placeholders like this makes your code very easy to maintain. Removing the noise of variables and concatenation may help you to identify typos/mistakes -- such as a missing space after Pay:.
You can, but would it be best to keep it as is for readability purposes? I don't think it will hurt the performance of your script having multiple echos.
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