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<?php |
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/** |
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* ActivityPub implementation for WordPress/PHP functions either missing from older WordPress/PHP versions or not included by default. |
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*/ |
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|
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if ( ! function_exists( 'str_starts_with' ) ) { |
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/** |
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* Polyfill for `str_starts_with()` function added in PHP 8.0. |
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* |
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* Performs a case-sensitive check indicating if |
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* the haystack begins with needle. |
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* |
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* @param string $haystack The string to search in. |
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* @param string $needle The substring to search for in the `$haystack`. |
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* @return bool True if `$haystack` starts with `$needle`, otherwise false. |
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*/ |
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function str_starts_with( $haystack, $needle ) { |
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if ( '' === $needle ) { |
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return true; |
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} |
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|
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return 0 === strpos( $haystack, $needle ); |
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} |
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} |
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|
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if ( ! function_exists( 'get_self_link' ) ) { |
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/** |
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* Returns the link for the currently displayed feed. |
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* |
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* @return string Correct link for the atom:self element. |
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*/ |
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function get_self_link() { |
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$host = wp_parse_url( home_url() ); |
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$path = isset( $_SERVER['REQUEST_URI'] ) ? sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ) : ''; |
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return esc_url( apply_filters( 'self_link', set_url_scheme( 'http://' . $host['host'] . $path ) ) ); |
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} |
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} |
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|
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if ( ! function_exists( 'is_countable' ) ) { |
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/** |
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* Polyfill for `is_countable()` function added in PHP 7.3. |
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* |
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* @param mixed $value The value to check. |
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* @return bool True if `$value` is countable, otherwise false. |
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*/ |
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function is_countable( $value ) { |
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return is_array( $value ) || $value instanceof \Countable; |
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} |
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} |
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|
