Return just the keys from the input array, optionally only for the specified search_value */PHP_FUNCTION(array_keys) {//变量定义zval *input,/* Input array */*search_value =NULL,/* Value to search for */**entry,/* An entry in the input array */res,/* Result of comparison */*new...
The array_unique() function removes duplicate values from an array. If two or more array values are the same, the first appearance will be kept and the other will be removed.Note: The returned array will keep the first array item's key type....
<?php $a=array("a"=>"red","b"=>"green","c"=>"red"); print_r(array_unique($a)); ?> Try it Yourself » Definition and Usage The array_unique() function removes duplicate values from an array. If two or more array values are the same, the first appearance will be kept and...
PHP array_unique() function: The array_unique() is used to remove duplicate values from an array.
PHP代码如下 <?php function assoc_unique($arr, $key) { $tmp_arr = array(); foreach ($arr as $k => $v) { if (in_array($v[$key], $tmp_arr)) {//搜索$v[$key]是否在$tmp_arr数组中存在,若存在返回true unset($arr[$k]); ...
PHP 小樊 101 2024-09-05 02:20:11 栏目: 编程语言 array_unique 函数只能用于处理一维数组,不适用于多维数组。要处理多维数组,您可以使用以下方法: 方法1:使用 array_map 和serialize function array_unique_multidimensional($array) { $serialized = array_map('serialize', $array); $unique = array_...
PHP代码如下 复制代码 <?phpfunctionassoc_unique($arr,$key){$tmp_arr=array();foreach($arras$k=>$v) {if(in_array($v[$key],$tmp_arr)) {//搜索$v[$key]是否在$tmp_arr数组中存在,若存在返回trueunset($arr[$k]); }else{$tmp_arr[] =$v[$key]; ...
29echo"With array_unique function,Spend time:($intTime2)"; 30echo""; 31print_r($arrT); 32print_r($arrRF); 33print_r($arrRS); 34echo""; 35?> 36 在$intTotal比较小的情况下,比如说1000以内,$intRand的取值基本不影响结果,两者执行的时间都差不多。 测试$intTotal ...
function a_array_unique($array)//写的比较好 { $out = array(); foreach ($array as $key=>$value) { if (!in_array($value, $out)) { $out[$key] = $value; } } return $out; } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. ...
numpy.unique() function The numpy.unique() function is used to find the unique elements of an array.Returns the sorted unique elements of an array. There are three optional outputs in addition to the unique elements: the indices of the input array that give the unique values ...