lue ) {
			if ( $callback( $value, $key ) ) {
				return $value;
			}
		}

		return null;
	}
}

if ( ! function_exists( 'array_find_key' ) ) {
	/**
	 * Polyfill for `array_find_key()` function added in PHP 8.4.
	 *
	 * Searches an array for the first key that passes a given callback.
	 *
	 * @since 6.8.0
	 *
	 * @param array    $array    The array to search.
	 * @param callable $callback The callback to run for each element.
	 * @return int|string|null The first key in the array that passes the `$callback`, otherwise null.
	 */
	function array_find_key( array $array, callable $callback ) { // phpcs:ignore Universal.NamingConventions.NoReservedKeywordParameterNames.arrayFound
		foreach ( $array as $key => $value ) {
			if ( $callback( $value, $key ) ) {
				return $key;
			}
		}

		return null;
	}
}

if ( ! function_exists( 'array_any' ) ) {
	/**
	 * Polyfill for `array_any()` function added in PHP 8.4.
	 *
	 * Checks if any element of an array passes a given callback.
	 *
	 * @since 6.8.0
	 *
	 * @param array    $array    The array to check.
	 * @param callable $callback The callback to run for each element.
	 * @return bool True if any element in the array passes the `$callback`, otherwise false.
	 */
	function array_any( array $array, callable $callback ): bool { // phpcs:ignore Universal.NamingConventions.NoReservedKeywordParameterNames.arrayFound
		foreach ( $array as $key => $value ) {
			if ( $callback( $value, $key ) ) {
				return true;
			}
		}

		return false;
	}
}

if ( ! function_exists( 'array_all' ) ) {
	/**
	 * Polyfill for `array_all()` function added in PHP 8.4.
	 *
	 * Checks if all elements of an array pass a given callback.
	 *
	 * @since 6.8.0
	 *
	 * @param array    $array    The array to check.
	 * @param callable $callback The callback to run for each element.
	 * @return bool True if all elements in the array pass the `$callback`, otherwise false.
	 */
	function array_all( array $array, callable $callback ): bool { // phpcs:ignore Universal.NamingConventions.NoReservedKeywordParameterNames.arrayFound
		foreach ( $array as $key => $value ) {
			if ( ! $callback( $value, $key ) ) {
				return false;
			}
		}

		return true;
	}
}

if ( ! function_exists( 'array_first' ) ) {
	/**
	 * Polyfill for `array_first()` function added in PHP 8.5.
	 *
	 * Returns the first element of an array.
	 *
	 * @since 6.9.0
	 *
	 * @param array $array The array to get the first element from.
	 * @return mixed|null The first element of the array, or null if the array is empty.
	 */
	function array_first( array $array ) { // phpcs:ignore Universal.NamingConventions.NoReservedKeywordParameterNames.arrayFound
		if ( empty( $array ) ) {
			return null;
		}

		foreach ( $array as $value ) {
			return $value;
		}
	}
}

if ( ! function_exists( 'array_last' ) ) {
	/**
	 * Polyfill for `array_last()` function added in PHP 8.5.
	 *
	 * Returns the last element of an array.
	 *
	 * @since 6.9.0
	 *
	 * @param array $array The array to get the last element from.
	 * @return mixed|null The last element of the array, or null if the array is empty.
	 */
	function array_last( array $array ) { // phpcs:ignore Universal.NamingConventions.NoReservedKeywordParameterNames.arrayFound
		if ( empty( $array ) ) {
			return null;
		}

		return $array[ array_key_last( $array ) ];
	}
}

if ( ! function_exists( 'clamp' ) ) {
	/**
	 * Polyfill for `clamp()` function added in PHP 8.6.
	 *
	 * Clamps a value to be within the range of a given minimum and maximum.
	 *
	 * If the value is within the bounds, the original value is returned.
	 * If it is not within the bounds, the closest bound is returned.
	 *
	 * @since 7.1.0
	 *
	 * @param mixed $value The value to clamp.
	 * @param mixed $min   The minimum bound. Must be less than or equal to `$max`.
	 * @param mixed $max   The maximum bound. Must be greater than or equal to `$min`.
	 * @return mixed The clamped value. Either `$value`, `$min`, or `$max`.
	 *
	 * @throws ValueError               If `$min` is greater than `$max`, or if `$min` or `$max` is NAN, and the ValueError class exists (PHP 8.0+ or polyfilled).
	 * @throws InvalidArgumentException If `$min` is greater than `$max`, or if `$min` or `$max` is NAN, and the ValueError class does not exist (PHP 7.x).
	 *
	 * @phpstan-template TValue
	 * @phpstan-template TMin
	 * @phpstan-template TMax
	 * @phpstan-param TValue $value
	 * @phpstan-param TMin   $min
	 * @phpstan-param TMax   $max
	 * @phpstan-return TValue|TMin|TMax
	 */
	function clamp( $value, $min, $max ) {
		$throw_value_error = static function ( string $message ) {
			// The ValueError class was introduced in PHP 8, so in 7.4 throw InvalidArgumentException instead.
			if ( ! class_exists( 'ValueError', false ) ) {
				throw new InvalidArgumentException( $message );
			}
			throw new ValueError( $message );
		};

		if ( is_float( $min ) && is_nan( $min ) ) {
			$throw_value_error( 'clamp(): Argument #2 ($min) must not be NAN' );
		}

		if ( is_float( $max ) && is_nan( $max ) ) {
			$throw_value_error( 'clamp(): Argument #3 ($max) must not be NAN' );
		}

		if ( $max < $min ) {
			$throw_value_error( 'clamp(): Argument #2 ($min) must be smaller than or equal to argument #3 ($max)' );
		}

		/*
		 * The upper bound is checked before the lower bound to match the order in PHP's
		 * implementation. Comparison in PHP is not transitive when operands of different
		 * types are mixed (for example, comparing against a bool coerces both operands to
		 * bool), so both bounds can compare as exceeded at once, and the first check wins.
		 */
		if ( $value > $max ) {
			return $max;
		}

		if ( $value < $min ) {
			return $min;
		}

		return $value;
	}
}

// IMAGETYPE_AVIF constant is only defined in PHP 8.x or later.
if ( ! defined( 'IMAGETYPE_AVIF' ) ) {
	define( 'IMAGETYPE_AVIF', 19 );
}

// IMG_AVIF constant is only defined in PHP 8.x or later.
if ( ! defined( 'IMG_AVIF' ) ) {
	define( 'IMG_AVIF', IMAGETYPE_AVIF );
}

// IMAGETYPE_HEIF constant is only defined in PHP 8.5 or later.
if ( ! defined( 'IMAGETYPE_HEIF' ) ) {
	define( 'IMAGETYPE_HEIF', 20 );
}
<br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function str_contains() in /home/he2a35ddd308f/public_html/wp-includes/load.php:1691
Stack trace:
#0 /home/he2a35ddd308f/public_html/wp-includes/default-constants.php(43): wp_convert_hr_to_bytes('512m')
#1 /home/he2a35ddd308f/public_html/wp-settings.php(66): wp_initial_constants()
#2 /home/he2a35ddd308f/public_html/wp-config.php(75): require_once('/home/he2a35ddd...')
#3 /home/he2a35ddd308f/public_html/wp-load.php(50): require_once('/home/he2a35ddd...')
#4 /home/he2a35ddd308f/public_html/wp-blog-header.php(13): require_once('/home/he2a35ddd...')
#5 /home/he2a35ddd308f/public_html/index.php(17): require('/home/he2a35ddd...')
#6 {main}
  thrown in <b>/home/he2a35ddd308f/public_html/wp-includes/load.php</b> on line <b>1691</b><br />