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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 228 | * Filter the default avatars. |
| 229 | * |
| 230 | * Avatars are stored in key/value pairs, where the key is option value, |
| 231 | * and the name is the displayed avatar name. |
| 232 | * |
| 233 | * @since 2.6.0 |
| 234 | * |
| 235 | * @param array $avatar_defaults Array of default avatars. |
| 236 | */ |
| 237 | $avatar_defaults = apply_filters( 'avatar_defaults', $avatar_defaults ); |
| 238 | $default = get_option('avatar_default'); |
| 239 | if ( empty($default) ) |
| 240 | $default = 'mystery'; |
| 241 | $size = 32; |
| 242 | $avatar_list = ''; |
| 243 | foreach ( $avatar_defaults as $default_key => $default_name ) { |
| 244 | $selected = ($default == $default_key) ? 'checked="checked" ' : ''; |
| 245 | $avatar_list .= "\n\t<label><input type='radio' name='avatar_default' id='avatar_{$default_key}' value='" . esc_attr($default_key) . "' {$selected}/> "; |
| 246 | |