In this post, I am going to explain how to remove duplicate values from multidimensional array in PHP. I usearray_unique()to get unique but its work on single-dimensional array, not able to work on multidimensional arrays. You can remove duplicates from the multidimensional array by value in...
遍历多维数组,使用array_map函数将每个子数组转换为字符串形式,以便比较。 使用array_unique函数去除重复的字符串形式的子数组。 使用array_map函数将每个字符串形式的子数组转换回原始的子数组形式。 下面是示例代码: 代码语言:php 复制 function removeDuplicateArrays($array) { $stringifiedArray = array_map('json...
Remove duplicates while preserving keys To preserve the array keys, you can use the double flip method: $some_array=array('Apple','Apple','Banana','Orange','Carrot','Carrot','Spinach');$unique_array=array_flip(array_flip($some_array));print_r($unique_array); However, to iterate over ...
*@returnstring */functionRemoveDuplicatedLinesByString($Lines,$IgnoreCase=false,$NewLine="\n"){if(is_array($Lines))$Lines=implode($NewLine,$Lines);$Lines=explode($NewLine,$Lines);$LineArray=array();$Duplicates=0;// Go trough all lines of the given filefor($Line=0;$Line<count($Lines...
php 2 $arr1 = array(1,3, 5,7,8); 3 $key = array_search(3, $arr1); 4 if ($key !...php 2 $arr2 = array(1,3, 5,7,8); 3 foreach ($arr2 as $key=>$value) 4 { 5 if...
array key $LineKey = $CurrentLine; if ($IgnoreCase) $LineKey = strtolower($LineKey); // Check if the array key already exists, // if not add it otherwise increase the counter if (!isset($LineArray[$LineKey])) $LineArray[$LineKey] = $CurrentLine; else $Duplicates++; } // Sort...
An other solution to remove duplicates entries of a multi-dimensional array based on key…<?phpfunction array_unique_multi(array $array, string $key): array { $unique = []; foreach ($array as $v) { if (!array_key_exists($v[$key], $unique)) { $unique[$v[$key]] = $v; } ...
Learn all about PHP's array_flip() function - its purpose, usage, benefits, and limitations. Explore practical examples and scenarios where this versatile function can streamline your coding tasks.
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php// Define two comma-separated lists as strings$list1="4, 5, 6, 7";$list2="4, 5, 7, 8";// Combine both lists with unique values only// Explode the strings into arrays, merge them, remove duplicates, and implode back into a string$result=implode(",",array_unique(array_merge(...