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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 |
|---|---|
| 207 | $content = trim( $content ); |
| 208 | |
| 209 | /** |
| 210 | * Filters the content of the post submitted by email before saving. |
| 211 | * |
| 212 | * @since 1.2.0 |
| 213 | * |
| 214 | * @param string $content The email content. |
| 215 | */ |
| 216 | $post_content = apply_filters( 'phone_content', $content ); |
| 217 | |
| 218 | $post_title = xmlrpc_getposttitle( $content ); |
| 219 | |
| 220 | if ( '' === trim( $post_title ) ) { |
| 221 | $post_title = $subject; |
| 222 | } |
| 223 | |
| 224 | $post_category = array( get_option( 'default_email_category' ) ); |
| 225 | |