Nsryjdtyk

I'm trying to add a logged in user ID (wordpress) to a GD image.

When I use a constant it displays the png correctly, when calling a variable it shows a broken image link.

The call is done through a shortcode calling:

/* ================== GET PIC USER ================== */

function get_pic_user($atts) {

$myphp_folder = get_stylesheet_directory_uri() . '/make-pic.php';

$html = '<img src="'.$myphp_folder.'" alt="Image created by a PHP script" width="1000" height="768" align="middle">';

return $html;

}

add_shortcode( 'display_get_pic_user', 'get_pic_user' );

The php behind the make-pic.php is:

<?php

$user = wp_get_current_user();

$string_user = $user->id;

$im = imagecreatefrompng("../my_user_pic.png");

header("Content-type: image/png");

$color = imagecolorallocate($im, 51, 51, 51);

imagestring($im, 21, 500, 350, $string_user, $color);

imagepng($im);

imagedestroy($im);

exit;

So this works:

<?php

$string_user = 15;

$im = imagecreatefrompng("../my_user_pic.png");

and this doesn't:

<?php

$user = wp_get_current_user();

$string_user = $user->id;

$im = imagecreatefrompng("../my_user_pic.png");

Any suggestions would be appreciated.

Thank you

After adding several REQUIRE and other solutions issues still manifested. A working solution that I came up with was to add the IMAGEPNG just inline with code, however using a OB_START / OB_GET_CLEAN. The following works:

The image is still called from the page with a shortcode [display_get_pic_user]. The code behind it is:

function get_pic_user() {

    $user = wp_get_current_user();

    $string_user = $user->id;

    $im = imagecreatefrompng("../my_user_pic.png");

    $color = imagecolorallocate($im, 51, 51, 51);

    imagestring($im, 21, 500, 350, $string_user, $color);

    ob_start(); 

        imagepng($im);

    $rawImageBytes = ob_get_clean();

    $html = "<img src='data:image/png;base64," . base64_encode( $rawImageBytes ) . "' align=middle/>";

    imagedestroy($im);

    return $html;

}

add_shortcode( 'display_get_pic_user', 'get_pic_user' );