PHP Array Tool type

PHP Array Tool class

PHP two-dimensional array deduplication function

 $V) {if ($stkeep) $k = $STARR [$k];if ($ndformat) {$TEMPARR = Explode (",", $v), foreach ($tempArr as $ndkey + = $ndval) $OUTPU t[$k] [$NDARR [$ndkey]] = $ndval;} else $output [$k] = Explode (",", $v); }return $output;} $array 2D = Array (' First ' =>array (' title ' = ' 1111 ', ' date ' = ' 2222 '), ' second ' =>array (' title ' = ' 1111 ', ' Date ' = ' 2222 '), ' third ' =>array (' title ' = ' 2222 ', ' date ' = ' 3333 '); echo "
";p Rint_r (unique_array_2d ($array 2d,true)),/*** the two-dimensional array through the specified key to go to the @param array $arr to go to the heavy arrays of * @param the $by array to specify key to go to the weight, the parameter Does not specify that returns an array () * @return array*/function array_multunique ($arr, $by = Array ()) {$temp = array (); foreach ($arr as $key = = $ val) {foreach ($by as $v) {$temp [$key]. = Isset ($val [$v])? $val [$v]: ';}} Return Array_intersect_key ($arr, Array_unique ($temp));} /* $aa = array (' id ' = = 123, ' name ' = = ' Zhang San '), array (' id ' = = 123, ' name ' = ' John Doe '), a Rray (' id ' = + 124, ' name ' = ' Harry '), Array (' id ' = ' = ', ' name ' = ' Zhao Liu '), array (' id ' = 126,  ' Name ' = ' Zhao Liu '));  $key = ' id '; Array_multunique ($AA, array (' ID ')); */function Array_remove_key ($array, $keys) {if (!is_array ($array) | |!is_array ($keys)) {return false;} foreach ($array as $t) {foreach ($keys as $k) {unset ($t [$k]);} $doc []= $t;} return $doc;} /* $array = Array (' 0 ' = = Array (' a ' = ' = ' aaaaa ', ' b ' = ' = ' bbbbb ', ' c ' = = Array (' d ' = = ' ddddd ', ' e ' = = ' eeeee ')), ' 1 ' = = Array (' a ' = = ' aaaaa ', ' b ' = = ' bbbbb ', ' c ' = = ' Array (' d ' = = ' ddddd ', ' e ' = ' = ' eeeee ')));p Rint_r (AR Ray_remove_key ($array, Array (' C '))) */function Array_remove_key_val (& $a, $b, $c) {foreach ($a as $key + = $value) { if (Isset ($value [$b]) && ($value [$b]== $c) {unset ($a [$key]);}} /* $a =array (array (' ID ' =>1, ' num ' =>10, ' type ' = ' news '), array (' ID ' =>2, ' num ' =>100, ' type ' = ' pic ')); Print_r (Array_remove_key_val ($a, "id", "1")); */
Array <=>xml Mutual Conversion http://hudeyong926.iteye.com/blog/836048
   $value) {if (Is_array ($value)) {array_remove_empty ($arr [$key]);            } else {$value = Trim ($value);            if ($value = = ") {unset ($arr [$key]);            } elseif ($trim) {$arr [$key] = $value; }}}}/** * Returns all values of the specified key from a two-dimensional array * * @param array $arr * @param string $col * * @return array */function Array_col_    VALUES (& $arr, $col) {$ret = array ();    foreach ($arr as $row) {if (Isset ($row [$col])) {$ret [] = $row [$col];} } return $ret;} /** * Convert a two-dimensional array to HashMap * * If the $valueField argument is omitted, each entry is an array containing all the data for that item. * * @param array $arr * @param string $keyField * @param string $valueField * * @return array */function array_to_hashmap (    & $arr, $keyField, $valueField = null) {$ret = array ();        if ($valueField) {foreach ($arr as $row) {$ret [$row [$keyField]] = $row [$valueField]; }} else {foreach ($arr as $row) {$ret [$row [$keyField]] =$row; }} return $ret;} /** * Group A two-dimensional array by the value of the specified field * * @param array $arr * @param string $keyField * * @return array */function array_group_by (&    $arr, $keyField) {$ret = array ();        foreach ($arr as $row) {$key = $row [$keyField];    $ret [$key] = $row; } return $ret;} /** * Converts a planar two-dimensional array to a tree structure according to the specified field * * When the $returnReferences parameter is true, the tree field that returns the result is the trees, and the refs field is the node reference. * With the returned node reference, it is convenient to get a subtree containing the root of any node. * * @param array $arr raw data * @param string $fid Node ID field name * @param string $fparent node parent ID field name * @param string $fchildrens Save sub-section The field name of the point * @param boolean $returnReferences whether to include the node reference in the returned result * * return array */function array_to_tree ($arr, $fid, $fparent = '    parent_id ', $fchildrens = ' childrens ', $returnReferences = False) {$pkvRefs = array ();    foreach ($arr as $offset = + $row) {$pkvRefs [$row [$fid]] =& $arr [$offset];    } $tree = Array ();        foreach ($arr as $offset = = $row) {$parentId = $row [$fparent];            if ($parentId) {if (!isset ($pkvRefs [$parentId])) {continue;}            $parent =& $pkvRefs [$parentId];        $parent [$fchildrens] [] =& $arr [$offset];        } else {$tree [] =& $arr [$offset];    }} if ($returnReferences) {return array (' tree ' = $tree, ' refs ' = $pkvRefs);    } else {return $tree; }}/** * Convert a tree to a flat array * * @param array $node * @param string $fchildrens * * @return array */function tree_to_array (& $no    DE, $fchildrens = ' childrens ') {$ret = array ();            if (Isset ($node [$fchildrens]) && is_array ($node [$fchildrens]) {foreach ($node [$fchildrens] as $child) {        $ret = Array_merge ($ret, Tree_to_array ($child, $fchildrens));        } unset ($node [$fchildrens]);    $ret [] = $node;    } else {$ret [] = $node; } return $ret;} /** * Sorts the array according to the specified key value * * @param arrays $array to be sorted * @param string $keyname key value name * @param int $sortDirection Sort direction * * @retu RN Array */function Array_column_sort($array, $keyname, $sortDirection = SORT_ASC) {return Array_sortby_multifields ($array, array ($keyname = = $sortDirection));} /** * A two-dimensional array is sorted by the specified column, similar to the ORDER by * * In the SQL statement @param array $rowset * @param array $args */function array_sortby_multifie    LDS ($rowset, $args) {$sortArray = array ();    $sortRule = "; foreach ($args as $sortField + $sortDir) {foreach ($rowset as $offset + = $row) {$sortArray [$sor        tfield][$offset] = $row [$sortField]; } $sortRule. = ' $sortArray [\ '. $sortField. '\'], ' . $sortDir.    ', ';    if (Empty ($sortArray) | | empty ($sortRule)) {return $rowset;} Eval (' Array_multisort ('. $sortRule.    ' $rowset); return $rowset;} /*description: The position of the two elements in the swap array, the elements include key and value, as shown in the following example $arr = Array (one-to-one ', ' X ', ' B ', ' X ', ' C ', + = ' d ') ; $res = Array_exchange ($arr, one, one); */function Array_exchange ($arr, $arg 1, $arg 2) {$r = range (0, COUNT ($arr)-1 ); $res = $res _bak = Array_combine ($r, Array_Keys ($arr)), $change = Array ($arg 1, $arg 2), List ($res [Array_search ($change [0], $res _bak)], $res [Array_search ( $change [1], $res _bak)] = Array ($change [1], $change [0]), foreach ($res as $v) {$array [$v] = $arr [$v];} return $array;} /* Suppose: Given a large array and a string, it is required to find 5 elements larger than the string in this large array. For a decimal group (for example, dozens of elements below the array), you can use a circular method to compare one, but for large arrays, this method is obviously not, it needs to find a quick find the location of the solution. $search = ' arr '; $array = Array (' ABS ', ' ACOs ', ' Acosh ', ' addcslashes ', ' addslashes ', ' aggregate_info ', ' Array_diff ', ' Array_fill_keys ', ' Array_fill ', ' array_filter ', ' base64_encode ', ' basename ', ' bcadd ', ' bccomp ', '; $arrpos = Array_pos ($   Array, $search);  Positioning $arr = Array_slice ($array, $arrpos, 5); Take out the array print_r ($arr); Quick Find results: Array ([0] = Array_diff [1] = Array_fill_keys [2] = = Array_fill [3] =&G T Array_filter [4] = Base64_encode) */function array_pos ($array, $search) {if (empty ($array)) return false;if (! $search Return 0;sort ($array), $array _turn = Array_flip ($array), if (Isset ($array _turn[$search]) {$arrpos = $array _turn[$search];} else {$tmp _arr = $array; $tmp _arr[] = $search; sort ($tmp _arr); $tmp _arr_turn = Array_flip ($tmp _arr); $arrpos = $tmp _arr_ turn[$search];} return $arrpos;} /** * Encode data convert * @param array/string $data array * @param string $input encoding to convert * @param string $output converted Encoding */function Array_iconv ($data, $input = ' GBK ', $output = ' utf-8 ') {if (!is_array ($data)) {return Iconv ($input, $output, $da TA);} else {foreach ($data as $key = + $val) {if (Is_array ($val)) {$data [$key] = Array_iconv ($val, $input, $output);} else {$data [$key] = Iconv ($input, $output, $val);}} return $data;}} /** $str = "Array (' workflowid ' = = ', ' ishtml ' = ' 0 ', ' content_ishtml ' = ' 0 ', ' create_to_html_root ' = ') '     0 ',) "; $setting = String2array ($STR); $setting: Array ([WorkflowId] = [ishtml] + 0 [content_ishtml] = 0 [Create_to_html_root] + 0) **//** * Convert string to array * * @paramstring $data String * @returnarray returns an array format, if data is empty, returns an empty array */func tion String2array ($data) {if ($data = = ') return array (), eval ("\ $array = $data;"); return $array;} /** * Returns a string or array that has been processed by stripslashes * @param $string the string or array to be processed * @return mixed */function new_stripslashes ($string) {if (!is_ Array ($string)) return stripslashes ($string), foreach ($string as $key = $val) $string [$key] = new_stripslashes ($val) ; return $string;} /*** convert an array to a string * * @paramarray $data array * @parambool $isformdata if 0, new_stripslashes processing is not used, optional parameter, default is 1* @ Returnstring returns a string, if data is empty, returns an empty */function array2string ($data, $isformdata = 1) {if ($data = = ") return"; if ($ Isformdata) $data = New_stripslashes ($data); return addslashes (Var_export ($data, TRUE));}               /* * Array converted to object $array = Array (' name ' = ' = ' one ', ' sex ' = ' '-' ', ' ' Test ' =>array (' a ' = = ' ss ', ' DD '),  ' Old ' = ' three '); $arrayobject = Array2object ($array); Echo $arrayobject->name;   Oneprint_r (Object2array ($arrayobject)); */function Array2object ($array) {if (!is_array ($array)) return $array; $object = new StdClass (); if (Is_array ($array) && Count ($array) > 0) {foreach ($array as $name = = $value) {$name = Strtolower (Trim ($name)), if ($name) $object $name = Array2object ($value);} return $object;} else return FALSE;} /* * Object Conversion array */function Object2array ($objParam) {$obj _param = (array) $objParam; foreach ($obj _param as $key + = $va Lue) {if (Is_object ($value)) {Object2array ($value), $obj _param [$key] = (array) $value;}} return $obj _param;} Adding elements at the beginning of the array keeps the original key constant Arrayunshift ($arr, Array (' Test ' = ' 4 ')) function Arrayunshift ($arrParams, $arrAdd) {$arr _keys = Array (), $arr _values = Array (), $arr _add_keys = Array_keys ($ARRADD), $arr _keys = Array ($arr _add_keys [0]); $arr _values = Array ($arrAdd [$arr _add_keys [0]]), foreach ($arrParams as $key = $value) {Array_push ($arr _keys, $key); array_p Ush ($arr _values, $value);} $arr _result = Array_combine ($arr _keys, $arr _values); return $arr _result;} Gets the value under a specific key under a multidimensional array and generates a one-dimensional array of function Getkey2array (array $arr, $key) {if (!trim ($key)) return False;preg_match_all ("/\ "$key \"; \w{1}:(?: \ d+:|) (. *);/", Serialize ($arr), $output); return $output [1];} Multidimensional array to one-dimensional array $arr =array (' 123.html ', ' 456.html ', Array (' dw.html ', ' fl.html ', Array (' ps.html ', ' fw.html ')), ' ab.html '); function Rebuild_array ($arr) {//rebuild a arraystatic $tmp =array (); for ($i =0; $i
  
    
    
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