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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 |
|---|---|
| 992 | $log = log( $bytes, 1024 ); |
| 993 | $power = (int) $log; |
| 994 | $size = pow(1024, $log - $power); |
| 995 | return $size . $units[$power]; |
| 996 | } |
| 997 | |
| 998 | function wp_max_upload_size() { |
| 999 | $u_bytes = wp_convert_hr_to_bytes( ini_get( 'upload_max_filesize' ) ); |
| 1000 | $p_bytes = wp_convert_hr_to_bytes( ini_get( 'post_max_size' ) ); |
| 1001 | $bytes = apply_filters( 'upload_size_limit', min($u_bytes, $p_bytes), $u_bytes, $p_bytes ); |
| 1002 | return $bytes; |
| 1003 | } |
| 1004 | |
| 1005 | function wp_import_upload_form( $action ) { |
| 1006 | $bytes = apply_filters( 'import_upload_size_limit', wp_max_upload_size() ); |
| 1007 | $size = wp_convert_bytes_to_hr( $bytes ); |
| 1008 | ?> |
| 1009 | <form enctype="multipart/form-data" id="import-upload-form" method="post" action="<?php echo attribute_escape($action) ?>"> |
| 1010 | <p> |