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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 |
---|---|
1110 | $log = log( $bytes, 1024 ); |
1111 | $power = (int) $log; |
1112 | $size = pow(1024, $log - $power); |
1113 | return $size . $units[$power]; |
1114 | } |
1115 |
|
1116 | function wp_max_upload_size() { |
1117 | $u_bytes = wp_convert_hr_to_bytes( ini_get( 'upload_max_filesize' ) ); |
1118 | $p_bytes = wp_convert_hr_to_bytes( ini_get( 'post_max_size' ) ); |
1119 | $bytes = apply_filters( 'upload_size_limit', min($u_bytes, $p_bytes), $u_bytes, $p_bytes ); |
1120 | return $bytes; |
1121 | } |
1122 |
|
1123 | function wp_import_upload_form( $action ) { |
1124 | $bytes = apply_filters( 'import_upload_size_limit', wp_max_upload_size() ); |
1125 | $size = wp_convert_bytes_to_hr( $bytes ); |
1126 | ?> |
1127 | <form enctype="multipart/form-data" id="import-upload-form" method="post" action="<?php echo attribute_escape($action) ?>"> |
1128 | <p> |