I tried to create a my own function call Test from a simple plugin php file (list categories Plugin) , but when I called it. It showed error ” Fatal error: Uncaught Error: Call to undefined function… “
<?php
/*
Plugin Name: List Categories
*/
class ListCategories{
static function list_categories($atts, $content = null) {
$atts = shortcode_atts(
array(
'show_option_all' => '',
'orderby' => 'name',
'order' => 'ASC',
'style' => 'list',
'show_count' => 0,
'hide_empty' => 1,
'use_desc_for_title' => 1,
'child_of' => 0,
'feed' => '',
'feed_type' => '',
'feed_image' => '',
'exclude' => '',
'exclude_tree' => '',
'include' => '',
'hierarchical' => 1,
'title_li' => __( 'Categories' ),
'show_option_none' => __( 'No categories' ),
'number' => null,
'echo' => 1,
'depth' => 0,
'current_category' => 0,
'pad_counts' => 0,
'taxonomy' => 'category',
'walker' => null
), $atts
);
test();
ob_start();
wp_list_categories($atts);
$output = ob_get_contents();
ob_end_clean();
return $output;
}
function test(){
//Do something
}
}
add_shortcode( 'categories', array('ListCategories', 'list_categories') );
Why I couldnt call the function? I tried update Wordpress but it still didnt work. Thanks!
I tried to create a my own function call Test from a simple plugin php file (list categories Plugin) , but when I called it. It showed error ” Fatal error: Uncaught Error: Call to undefined function… “
<?php
/*
Plugin Name: List Categories
*/
class ListCategories{
static function list_categories($atts, $content = null) {
$atts = shortcode_atts(
array(
'show_option_all' => '',
'orderby' => 'name',
'order' => 'ASC',
'style' => 'list',
'show_count' => 0,
'hide_empty' => 1,
'use_desc_for_title' => 1,
'child_of' => 0,
'feed' => '',
'feed_type' => '',
'feed_image' => '',
'exclude' => '',
'exclude_tree' => '',
'include' => '',
'hierarchical' => 1,
'title_li' => __( 'Categories' ),
'show_option_none' => __( 'No categories' ),
'number' => null,
'echo' => 1,
'depth' => 0,
'current_category' => 0,
'pad_counts' => 0,
'taxonomy' => 'category',
'walker' => null
), $atts
);
test();
ob_start();
wp_list_categories($atts);
$output = ob_get_contents();
ob_end_clean();
return $output;
}
function test(){
//Do something
}
}
add_shortcode( 'categories', array('ListCategories', 'list_categories') );
Why I couldnt call the function? I tried update Wordpress but it still didnt work. Thanks!
Share Improve this question asked Mar 6, 2019 at 8:57 Viet TViet T 33 bronze badges 1- Check the syntax. – Max Yudin Commented Mar 6, 2019 at 9:21
1 Answer
Reset to default 0In your code there’s this part:
test();
ob_start();
wp_list_categories($atts);
$output = ob_get_contents();
But I really doubt that global function called test exists on your page.
There is a function called test in your class, but it’s not static (so you can’t call it from static context unless you change it to static function test(){...}), and you should call it with self::test();