Create Facebook share button by Hool using HTML code?

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I’m using this code to create the Share button, but it only work to share a fixed link.

I wanna make this hook available for all post, and with each post, it will share itsefl link but not a fixed link like the code below.

Here is the code:

<!– Your share button code –>

<div class=”fb-share-button”

data-href=”[https://vantuanle.com/blog/cai-youtube-vanced-cho-iphone/]”

data-layout=”button\_count”>

</div>

I try to find the solution but it tell me to use this php code to single.php after

<header class=”entry-header”>…</header>

add\_action( ‘the\_post’, ‘add\_facebook\_share\_button’ );

function add\_facebook\_share\_button() {

global $post;

$permalink = get\_permalink( $post->ID );

?>

<!– Your share button code –>

<div class=”fb-share-button”

data-href=”<?php echo esc\\\_url( $permalink ); ?>”

data-layout=”button\_count”>

</div>

<?php
}
but my single.php file doesnt has that code so i cant insert.

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