PHP array_key_last() Function6 Jan 2025 | 1 min read The array_key_last( ) function is used to get the last key of an array. This function was introduced in PHP 7.3.0 SyntaxParameters
Return ValuesThe array_key_last( ) function returns the last key of the array if the array is not empty, otherwise null. IMPORTANT NOTE- The above two functions are introduced in PHP 7.3.0 that is not released officially that's why example is not given in the above functions.Next TopicPhp-array-keys-function |
The array_reduce() function is a inbuilt function of PHP. The array_reduce( ) function is used to reduce the array to a single value using a callback function. This function was introduced in PHP 4.0.5. Syntax mixed array_reduce ( array $array , callable $callback [, mixed $initial =...
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PHP usort( ) Function The PHP usort( ) function is used to sort an array by its value using a user-supplied comparison function. If the array you wish to sort needs to be sorted by some non-trivial criteria, you should use this function. This function was...
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The array_uintersect_uassoc( ) is an inbuilt function of PHP. The array_uintersect_uassoc() function uses two user-defined functions to compare the keys and values of two or more arrays, and returns the matches. This function was introduced in PHP 5.0. Syntax array array_uintersect_uassoc ( array $array1 , array $array2...
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The in_array( ) function is an inbuilt function of PHP. It is used to search an array for a specific value. If the third parameter strict is set to true, the in_array( ) function will also check the types of the $values. Syntax bool in_array ( mixed...
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The array_key_first( ) function is used to get the first key of an array. This function was introduced in PHP 7.3.0 Syntax mixed array_key_first ( array $array ); Parameters Parameter Description Is compulsory array Specifies the array. compulsory Return Values The array_key_first( ) function returns the first key of the array if the array is not...
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The array_pop() function is inbuilt function of PHP. The array_pop() function is used to remove the last element of an array. For an empty array, this function returns NULL. This function was introduced in PHP 4.0. Syntax mixed array_pop ( array &$array ); Parameters Parameter Description Required/Optional array Specifies an array. compulsory Return Type The array_pop()...
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PHP sort() Function The PHP sort( ) function is used to sort the array elements in ascending order. This function was introduced in PHP 4.0. Syntax bool sort ( array &$array [, int $sort_flags = SORT_REGULAR ] ); Parameter Parameter Description Is compulsory array Specifies the array to be sorted. compulsory Sort flags Sorting behavior. Possible type : SORT_REGULAR...
1 min read
The array_arsort( ) function is an inbuilt function of PHP. The array_arsort( ) function is used to sort an array in reverse order and the function maintains index association. This function was introduced in 4.0. Syntax bool arsort ( array &$array [, int $sort_flags = SORT_REGULAR ]...
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The array_intersect( ) function is used to Computes the intersection of arrays. It compares two or more arrays and returns an array containing all the values of the first array that are present in other arrays. In this operation, keys are preserved. This function was...
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This function is inbuilt in PHP and it was introduced in PHP 5. The function array_diff_uassoc() is used to compute the difference of arrays with additional index check which is performed by a user supplied callback function. In simple words, the function compares array1 against array2...
1 min read
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