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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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92 | * Fires inside limited and specific upload-tab views in the legacy |
93 | * (pre-3.5.0) media popup. |
94 | * |
95 | * The dynamic portion of the hook name, `$tab`, refers to the specific |
96 | * media upload tab. Possible values include 'library' (Media Library), |
97 | * or any custom tab registered via the {@see 'media_upload_tabs'} filter. |
98 | * |
99 | * @since 2.5.0 |
100 | */ |
101 | do_action( "media_upload_$tab" ); |
102 | } |
103 |
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104 |
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