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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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127 | $login_header_url = __( 'https://wordpress.org/' ); |
128 |
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129 | /** |
130 | * Filters link URL of the header logo above login form. |
131 | * |
132 | * @since 2.1.0 |
133 | * |
134 | * @param string $login_header_url Login header logo URL. |
135 | */ |
136 | $login_header_url = apply_filters( 'login_headerurl', $login_header_url ); |
137 |
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138 | $login_header_title = ''; |
139 |
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140 | /** |
141 | * Filters the title attribute of the header logo above login form. |
142 | * |
143 | * @since 2.1.0 |
144 | * @deprecated 5.2.0 Use {@see 'login_headertext'} instead. |
145 | * |