doitinpoland.com/wp-content/plugins/sitepress-multilingual-cms/inc/hacks/missing-php-functions.php

<?php

if ( ! function_exists( '_cleanup_header_comment' ) ) {
	function _cleanup_header_comment( $str ) {
		return trim( preg_replace( '/\s*(?:\*\/|\?>).*/', '', $str ) );
	}
}

if ( ! defined( 'E_DEPRECATED' ) ) {
	define( 'E_DEPRECATED', 8192 ); }

if ( ! function_exists( 'esc_textarea' ) ) :

	function esc_textarea( $text ) {
		$safe_text = esc_html( $text );
		return apply_filters( 'esc_textarea', $safe_text, $text );
	}

endif;

/**
 * This file is part of the array_column library
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @copyright Copyright (c) 2013 Ben Ramsey <http://benramsey.com>
 * @license http://opensource.org/licenses/MIT MIT
 */

if ( ! function_exists( 'array_column' ) ) {

	/**
	 * Returns the values from a single column of the input array, identified by
	 * the $columnKey.
	 *
	 * Optionally, you may provide an $indexKey to index the values in the returned
	 * array by the values from the $indexKey column in the input array.
	 *
	 * @param array $input A multi-dimensional array (record set) from which to pull
	 *                     a column of values.
	 * @param mixed $columnKey The column of values to return. This value may be the
	 *                         integer key of the column you wish to retrieve, or it
	 *                         may be the string key name for an associative array.
	 * @param mixed $indexKey (Optional.) The column to use as the index/keys for
	 *                        the returned array. This value may be the integer key
	 *                        of the column, or it may be the string key name.
	 * @return array|false
	 */
	function array_column( $input = null, $columnKey = null, $indexKey = null ) {
		// Using func_get_args() in order to check for proper number of
		// parameters and trigger errors exactly as the built-in array_column()
		// does in PHP 5.5.
		$argc   = func_num_args();
		$params = func_get_args();

		if ( $argc < 2 ) {
			trigger_error( "array_column() expects at least 2 parameters, {$argc} given", E_USER_WARNING );
			return null;
		}

		if ( ! is_array( $params[0] ) ) {
			trigger_error( 'array_column() expects parameter 1 to be array, ' . gettype( $params[0] ) . ' given', E_USER_WARNING );
			return null;
		}

		if ( ! is_int( $params[1] )
			&& ! is_float( $params[1] )
			&& ! is_string( $params[1] )
			&& $params[1] !== null
			&& ! ( is_object( $params[1] ) && method_exists( $params[1], '__toString' ) )
		) {
			trigger_error( 'array_column(): The column key should be either a string or an integer', E_USER_WARNING );
			return false;
		}

		if ( isset( $params[2] )
			&& ! is_int( $params[2] )
			&& ! is_float( $params[2] )
			&& ! is_string( $params[2] )
			&& ! ( is_object( $params[2] ) && method_exists( $params[2], '__toString' ) )
		) {
			trigger_error( 'array_column(): The index key should be either a string or an integer', E_USER_WARNING );
			return false;
		}

		$paramsInput     = $params[0];
		$paramsColumnKey = ( $params[1] !== null ) ? (string) $params[1] : null;

		$paramsIndexKey = null;
		if ( isset( $params[2] ) ) {
			if ( is_float( $params[2] ) || is_int( $params[2] ) ) {
				$paramsIndexKey = (int) $params[2];
			} else {
				$paramsIndexKey = (string) $params[2];
			}
		}

		$resultArray = array();

		foreach ( $paramsInput as $row ) {

			$key    = $value = null;
			$keySet = $valueSet = false;

			if ( $paramsIndexKey !== null && array_key_exists( $paramsIndexKey, $row ) ) {
				$keySet = true;
				$key    = (string) $row[ $paramsIndexKey ];
			}

			if ( $paramsColumnKey === null ) {
				$valueSet = true;
				$value    = $row;
			} elseif ( is_array( $row ) && array_key_exists( $paramsColumnKey, $row ) ) {
				$valueSet = true;
				$value    = $row[ $paramsColumnKey ];
			}

			if ( $valueSet ) {
				if ( $keySet ) {
					$resultArray[ $key ] = $value;
				} else {
					$resultArray[] = $value;
				}
			}
		}

		return $resultArray;
	}
}

if ( ! function_exists( 'array_replace_recursive' ) ) {
	function array_replace_recursive( $array, $array1 ) {
		// handle the arguments, merge one by one
		$args  = func_get_args();
		$array = $args[0];
		if ( ! is_array( $array ) ) {
			return $array;
		}
		$args_count = count( $args );
		for ( $i = 1; $i < $args_count; $i ++ ) {
			if ( is_array( $args[ $i ] ) ) {
				$array = array_replace_recursive_recurse( $array, $args[ $i ] );
			}
		}

		return $array;
	}

	function array_replace_recursive_recurse( $array, $array1 ) {
		foreach ( $array1 as $key => $value ) {
			// create new key in $array, if it is empty or not an array
			if ( ! isset( $array[ $key ] ) || ( isset( $array[ $key ] ) && ! is_array( $array[ $key ] ) ) ) {
				$array[ $key ] = array();
			}

			// overwrite the value in the base array
			if ( is_array( $value ) ) {
				$value = array_replace_recursive_recurse( $array[ $key ], $value );
			}
			$array[ $key ] = $value;
		}

		return $array;
	}
}