php find duplicates in array

Some php array learning notes. There are three types of php arrays: a numeric array with a numeric ID key, and an ID key in an array associated with a value multi-dimensional array containing one or more arrays, there are three types of php arrays:

Basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Get the value of an arrayArray_keys ($arr); Gets the key name of the arrayArray_flip ($arr); the values in the array are exchanged with the key names (if

Php array operations If you are still struggling to find the php array operation method, you must not miss this article, the most comprehensive php array operation method, and hope to help you.I. basic functionsKey name and value of the

The technology is not refined. If you have any mistakes, please point out that I will correct them.Copy codeThe Code is as follows:Header ('content-Type: text/html; charset = UTF-8 ');Echo ' ';Function var_array ($ array){Echo ' ';Var_dump ($ array )

If you are still struggling to find the PHP array operation method, you must not miss this article, the most complete PHP array operation method, I hope to be helpful.the key name and value of the basic function Array array_values ($ARR), get the

Small example of removing duplicates from php arrays Function assoc_unique ($ arr, $ key ){ $ Tmp_arr = array (); Foreach ($ arr as $ k =>$ v ){ If (in_array ($ v [$ key], $ tmp_arr )){ Unset ($

Tip tips: Array_keys ($array)//Return all key names array_values ($array)//Return all key values $result =array_reverse ($input);//invert array without retaining key name $result _keyed=array_reverse ($input, true);//reverse array,

This article mainly introduces PHP for the two-dimensional array of the corresponding operation, interested in the reference of friends, I hope to be helpful to everyone. Tips Tips: Array_keys ($array)//Returns all key names array_values ($array)/

Function name use format input/output operation Array Generation and Transformation: The array () generates an array of arrays (mixed [...]) for arrays of values or, key = = value An array-type variable without Array_combine () generates an array

Php bubble sorting, quick sorting, quick search, and two-dimensional array deduplication instance sharing. I. Code of the bubble sort copy code: functionbubble_sort ($ array) {$ countcount ($ array); if ($ count0) {returnfalse;} for ($ i0; $ I $