in Foreach Loop the Description is not showing?

Question

in my index.php page, i used this code but its not showing description ie: 100 characters of my articles? Don't recommend replacing get_the_content() with $post->post_content, i know that works. but need correct output keeping get_the_content().let me know what other thing should i change in this code to get the output.

<?php
$args = array('posts_per_page'=>3,
    'orderby'=>'rand',
    'post_type'=>'post'
);

$post_data = get_posts($args);

foreach($post_data as $post){

    echo '<a href="'.get_the_permalink().'">'.get_the_title().'</a><br>';

    $post_data = substr(strip_tags(get_the_content()),0,100).'...';
    echo $post_data."<br>";

}
?>

Answer 1

Please read about the get_the_permalink and get_the_title. These functions are developed to fetch the details from global $post variable. Your local $post won't be effective here.

You should either pass local $post to these functions like get_the_permalink($post) and get_the_title($post). For get_the_content, you will need to use apply_filters('the_content',$post->post_content);

However, preferred way is to create an object of WP_Query. Please read about its a powerful class to query everything about posts. In your case, it will look something like this

<?php
$args = array('posts_per_page'=>3,
    'orderby'=>'rand',
    'post_type'=>'post'
);

$randomPosts = new WP_Query($args);

while($randomPosts->have_posts()){
    $randomPosts->the_post();

    echo '<a href="'.get_the_permalink().'">'.get_the_title().'</a><br>';

    echo substr(strip_tags(get_the_content()),0,100).'...';
    echo "<br>";

}
?>

I have not tested above code but, I guess, you get the idea.