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How to add WP variables to GD imagepng
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;
$im = imagecreatefrompng("../my_user_pic.png");
Any suggestions would be appreciated.
Thank you
php wordpress gd php-gd
asked Nov 19 '18 at 16:25
Duttch
113
add a comment |
I'm trying to add a logged in user ID (wordpress) to a GD image.
When I use a constant it displays the png correctly, when calling a variable it shows a broken image link.
The call is done through a shortcode calling:
/* ================== GET PIC USER ================== */
function get_pic_user($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;
$im = imagecreatefrompng("../my_user_pic.png");
Any suggestions would be appreciated.
Thank you
php wordpress gd php-gd
asked Nov 19 '18 at 16:25
Duttch
113
On debugging the issue further, I've notice the following: Its giving a FATAL ERROR: Uncaught Error: Call to undefined function wp_get_curent_user() in .....
– Duttch
Nov 20 '18 at 20:03
add a comment |
I'm trying to add a logged in user ID (wordpress) to a GD image.
When I use a constant it displays the png correctly, when calling a variable it shows a broken image link.
The call is done through a shortcode calling:
/* ================== GET PIC USER ================== */
function get_pic_user($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;
$im = imagecreatefrompng("../my_user_pic.png");
Any suggestions would be appreciated.
Thank you
php wordpress gd php-gd
asked Nov 19 '18 at 16:25
Duttch
113
I'm trying to add a logged in user ID (wordpress) to a GD image.
When I use a constant it displays the png correctly, when calling a variable it shows a broken image link.
The call is done through a shortcode calling:
/* ================== GET PIC USER ================== */
function get_pic_user($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
php wordpress gd php-gd
php wordpress gd php-gd
asked Nov 19 '18 at 16:25
Duttch
113
asked Nov 19 '18 at 16:25
Duttch
113
edited Nov 19 '18 at 16:47
asked Nov 19 '18 at 16:25
Duttch
113
asked Nov 19 '18 at 16:25
Duttch
113
asked Nov 19 '18 at 16:25
Duttch
113
113
On debugging the issue further, I've notice the following: Its giving a FATAL ERROR: Uncaught Error: Call to undefined function wp_get_curent_user() in .....
– Duttch
Nov 20 '18 at 20:03
add a comment |
On debugging the issue further, I've notice the following: Its giving a FATAL ERROR: Uncaught Error: Call to undefined function wp_get_curent_user() in .....
– Duttch
Nov 20 '18 at 20:03
On debugging the issue further, I've notice the following: Its giving a FATAL ERROR: Uncaught Error: Call to undefined function wp_get_curent_user() in .....
– Duttch
Nov 20 '18 at 20:03
On debugging the issue further, I've notice the following: Its giving a FATAL ERROR: Uncaught Error: Call to undefined function wp_get_curent_user() in .....
– Duttch
Nov 20 '18 at 20:03
add a comment |
1 Answer
1
active
oldest
votes
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' );
answered Nov 21 '18 at 17:17
Duttch
113
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
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' );
answered Nov 21 '18 at 17:17
Duttch
113
add a comment |
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' );
answered Nov 21 '18 at 17:17
Duttch
113
add a comment |
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' );
answered Nov 21 '18 at 17:17
Duttch
113
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' );
answered Nov 21 '18 at 17:17
Duttch
113
edited Nov 21 '18 at 19:05
answered Nov 21 '18 at 17:17
Duttch
113
answered Nov 21 '18 at 17:17
Duttch
113
answered Nov 21 '18 at 17:17
Duttch
113
113
add a comment |
add a comment |
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On debugging the issue further, I've notice the following: Its giving a FATAL ERROR: Uncaught Error: Call to undefined function wp_get_curent_user() in .....
– Duttch
Nov 20 '18 at 20:03