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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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1291 |
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1292 | /** |
1293 | * Filters the redirect HTTP response status code to use. |
1294 | * |
1295 | * @since 2.3.0 |
1296 | * |
1297 | * @param int $status The HTTP response status code to use. |
1298 | * @param string $location The path or URL to redirect to. |
1299 | */ |
1300 | $status = apply_filters( 'wp_redirect_status', $status, $location ); |
1301 |
|
1302 | if ( ! $location ) { |
1303 | return false; |
1304 | } |
1305 |
|
1306 | if ( $status < 300 || 399 < $status ) { |
1307 | wp_die( __( 'HTTP redirect status code must be a redirection code, 3xx.' ) ); |
1308 | } |
1309 |
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