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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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79 | $whitelist_options['writing'] = array_merge($whitelist_options['writing'], $mail_options); |
80 | $whitelist_options['writing'][] = 'ping_sites'; |
81 |
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82 | $whitelist_options['media'] = array_merge($whitelist_options['media'], $uploads_options); |
83 | } else { |
84 | $whitelist_options['general'][] = 'new_admin_email'; |
85 | $whitelist_options['general'][] = 'WPLANG'; |
86 | $whitelist_options['general'][] = 'language'; |
87 |
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88 | if ( apply_filters( 'enable_post_by_email_configuration', true ) ) |
89 | $whitelist_options['writing'] = array_merge($whitelist_options['writing'], $mail_options); |
90 |
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91 | $whitelist_options[ 'misc' ] = array(); |
92 | } |
93 |
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94 | $whitelist_options = apply_filters( 'whitelist_options', $whitelist_options ); |
95 |
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96 | /* |
97 | * If $_GET['action'] == 'update' we are saving settings sent from a settings page |