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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 |
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1329 | /** |
1330 | * Holder for the 'format_to_post' filter. |
1331 | * |
1332 | * @since 0.71 |
1333 | * |
1334 | * @param string $content The text to pass through the filter. |
1335 | * @return string Text returned from the 'format_to_post' filter. |
1336 | */ |
1337 | function format_to_post($content) { |
1338 | $content = apply_filters('format_to_post', $content); |
1339 | return $content; |
1340 | } |
1341 |
|
1342 | /** |
1343 | * Add leading zeros when necessary. |
1344 | * |
1345 | * If you set the threshold to '4' and the number is '10', then you will get |
1346 | * back '0010'. If you set the threshold to '4' and the number is '5000', then you |
1347 | * will get back '5000'. |