如何在echo中使用foreach来回显数组

Question

I have an array $category_slugs

how to output this using echo ?

I have an error in code bellow:

echo "<div class='transition ".foreach($category_slugs as $slug){echo $slug;echo ' ';}."' data-category='transition'> " ?>

Thanks

Answer 1

You can't use foreach inside a echo . To achieve what you are trying you can use implode function, it concatenates the values of an array on a string.

echo "<div class='transition " .implode(' ', $category_slugs). "' data-category='transition'> " ?>

Answer 2

try this code

<div class="transition <?php foreach($category_slugs as $slug){echo $slug . ' ';} ?>" data-category="transition">

The concatenation operator ('.'), which returns the concatenation of its right and left arguments.

from php manual

But this code not a string.

foreach($category_slugs as $slug){echo $slug;echo ' ';}

So you will get a error.

This manual may help you Escaping from HTML .

Sorry for my bad english, I hope it will help you.

Answer 3

Wrap <div> in a for loop, like so

<?php

$slug_string = "";

foreach($category_slugs as $slug){

$slug_string .= $slug_string." ";

}

echo "<div class='transition ".$slug_string."' data-category='transition'> ";

?>

Answer 4

try this

$category_slugs =array('a','b','c');
foreach($category_slugs as $slug){
echo "<div class='transition ".$slug.' '."' data-category='transition'></div> " ;
}