Summary of Array_diff_ukey function usage

Define and use the Array_diff_ukey () function to compare the key names of two (or more) arrays and return the difference set. Note: This function uses a user-defined function to compare key names! The function compares the key names of two (or more) arrays, and returns an array of difference sets that contain all the key names in the array being compared (array1), but not in any other parameter array (array2 or array3, and so on). Syntax Array_diff_ukey (array1,array2,array3...,myfunction); parameter description array1 must be. The first array to compare with the other array. Array2 must have. The array to compare with the first array. Array3,... Optional. The other array to compare to the first array &am

1. A detailed introduction to the Array_diff_ukey function

Summary: Define and use the Array_diff_ukey () function to compare the key names of two (or more) arrays, and return a difference set. Note: This function uses a user-defined function to compare key names! The function compares the key names of two (or more) arrays, and returns an array of difference sets, which includes all the arrays (array1) that are being compared, but not any other array of arguments (array2  or  array3  And so on) in the key name. Grammar Array_diff_ukey (A ...

2. PHP array_diff_ukey () function definition and usage

Summary: Define and use the Array_diff_ukey () function to compare the key names of two (or more) arrays and return a difference set. Note: This function uses a user-defined function to compare key names! The function compares the key names of two (or more) arrays, and returns an array of difference sets that contain all the key names in the array being compared (array1), but not in any other parameter array (array2 or array3, and so on). Grammar

3. php-arrays function-array_diff_ukey-using a callback function to compare the difference set of an array to a key name _php tutorial

Summary: The Php-arrays function-array_diff_ukey-the difference set of the array by using the callback function to compare the key names. The Array_diff_ukey () function uses a callback function to compare a key name to the difference set "function" of an array. The function returns an array that contains all the array1 but not any other

4. How to learn PHP array_diff_ukey () _php Tutorial

Introduction: How To learn PHP Array_diff_ukey (). How to learn php array_diff_ukey () Definition and usage array_diff_ukey () returns an array that contains all the keys that appear in Array1 but do not appear in any other parameter array

5. php-arrays function-array_diff_ukey-using a callback function to compare the difference set of an array to a key name

Summary: The Php-arrays function-array_diff_ukey-the difference set of the array by using the callback function to compare the key names. The Array_diff_ukey () function uses a callback function to compare a key name to the difference set "function" of an array. The function returns an array that contains all the array1 but not any other

6. How to learn PHP Array_diff_ukey ()

Introduction: How To learn PHP Array_diff_ukey (). How to learn php array_diff_ukey () Definition and usage array_diff_ukey () returns an array that contains all the keys that appear in Array1 but do not appear in any other parameter array