Get first paragraph in wordpress - php

Question

I have a problem with getting the first form the_excerpt();
Function acutally works but only for first post. I added in functions.php
function get_first_paragraph(){
global $post;
$str = wpautop( get_the_content() );
$str = substr( $str, 0, strpos( $str, '</p>' ) + 4 );
$str = strip_tags($str, '<a><strong><em>');
return '<p>' . $str . '</p>';
}
I'm calling this funcion in index.php inside The Loop <?php echo get_first_paragraph(); ?>
I have no idea why it pulls only for first post...

Answer 1

you can put this code in function.php file in your theme,
Get first paragraph
function awesome_excerpt($text, $raw_excerpt) {
if( ! $raw_excerpt ) {
$content = apply_filters( 'the_content', get_the_content() );
$text = substr( $content, 0, strpos( $content, '</p>' ) + 4 );
}
return $text;
}
add_filter( 'wp_trim_excerpt', 'awesome_excerpt', 10, 2 );
For more information, you can follow the reference link WORDPRESS THE_EXCERPT SHOW ONLY FIRST PARAGRAPH

Answer 2

That code didn't work for me in Gutenberg times. So I've used part of that code and did some searching and come up with this solution. Hope it helps.
function get_paragraph_content($paragraph_number){
global $post;
$i = 0;
$paragraph = '';
if ( has_blocks( $post->post_content ) ) {
$blocks = parse_blocks( $post->post_content );
foreach( $blocks as $block ) {
if( 'core/paragraph' === $block['blockName']){
$paragraph = render_block($block);
if (++$i == $paragraph_number) break;
}
}
$paragraph = substr( $paragraph, 0, strpos( $paragraph, '</p>' ) + 4 );
$paragraph = strip_tags($paragraph, '<a><strong><em>');
}
return $paragraph;
}