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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 |
|---|---|
| 171 | $content = explode($delim[0], $content); |
| 172 | $content = $content[1]; |
| 173 | } |
| 174 | $content = strip_tags($content, '<img><p><br><i><b><u><em><strong><strike><font><span><div>'); |
| 175 | } |
| 176 | $content = trim($content); |
| 177 | |
| 178 | //Give Post-By-Email extending plugins full access to the content |
| 179 | //Either the raw content or the content of the last quoted-printable section |
| 180 | $content = apply_filters('wp_mail_original_content', $content); |
| 181 | |
| 182 | if ( false !== stripos($content_transfer_encoding, "quoted-printable") ) { |
| 183 | $content = quoted_printable_decode($content); |
| 184 | } |
| 185 | |
| 186 | if ( function_exists('iconv') && ! empty( $charset ) ) { |
| 187 | $content = iconv($charset, get_option('blog_charset'), $content); |
| 188 | } |
| 189 | |