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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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117 | /** |
118 | * Filters the locale for the current request prior to the default determination process. |
119 | * |
120 | * Using this filter allows to override the default logic, effectively short-circuiting the function. |
121 | * |
122 | * @since 5.0.0 |
123 | * |
124 | * @param string|null The locale to return and short-circuit, or null as default. |
125 | */ |
126 | $determined_locale = apply_filters( 'pre_determine_locale', null ); |
127 | if ( ! empty( $determined_locale ) && is_string( $determined_locale ) ) { |
128 | return $determined_locale; |
129 | } |
130 |
|
131 | $determined_locale = get_locale(); |
132 |
|
133 | if ( is_admin() ) { |
134 | $determined_locale = get_user_locale(); |
135 | } |