PHP key() Function6 Jan 2025 | 1 min read The key( ) function returns the element key from the current internal pointer position. This function was introduced in 4.0. SyntaxParameter
ReturnsThe key( ) returns the key of the array element that is currently being pointed by the internal pointer. Example 1Output: The key from the current position is: 0 Example 2Output: Current position Key is : Subject1 Example 3Output: Current position Key is :tata Example 4Output: The key from the current position is: 0 Next TopicPhp-array-key-last-function |
PHP () Function The PHP ( ) function is used to fetch the array value in the ious place, pointed by the internal array pointer. This function was introduced in PHP 4.0. Syntax mixed ( array &$array ); Parameter Parameter Description Is compulsory array Specifies the array to use. compulsory Returns The ( ) function returns...
1 min read
The array_product() function is inbuilt function of PHP. The array_product() function calculates the product of an array. This function was introduced in PHP 5.1.0. Syntax number array_product ( array $array ); Parameters Parameter Description Required/Optional array Specifies an array. compulsory Return Type The array_product() function returns the product as an integer or float. Example 1 <?php $prime=array(2,3,5,7); print_r(array_product($prime)); ?> Output: 210 Example 2 <?php $even=array(2,6); print_r($even); print_r(array_product($even)); echo "\n"; $odd=array(7,9); print_r($odd); print_r(array_product($odd)); ?> Output: Array ( ...
1 min read
The array_slice() function is an inbuilt function of PHP. The array_slice() function is used to extract a slice of an array. This function was introduced in 4.0. Syntax array array_slice ( array $array , int $offset [, int $length = NULL [, bool $preserve_keys = FALSE ]]...
1 min read
The array_sum( ) function is an inbuilt function of PHP. The array_sum( ) function calculates the sum of values in an array and returns the sum of values in an array as an integer or float. This function was introduced in PHP 4.0.4. Syntax number array_sum (...
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The array_map( ) is an built-in function in PHP. The array_map( ) function sends each value of an array to a user-defined function, and returns an array with new values given by the user-defined function. This function was introduced in 4.0.6. Syntax array array_map ( callable $callback...
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The array_push() function is a inbuilt function in PHP. The array_push() function is used to add one or more elements onto the end of an array. The length of array increases by the number of variables pushed. The array_push() function was introduced in PHP 4.0. Syntax int...
1 min read
PHP shuffle() Function The PHP shuffle( ) function is used to randomize the order of the elements in the array. The function assigns new keys to the elements in an array. This function introduced in PHP 4.0. Syntax bool shuffle ( array &$array ); Parameter Parameter Description Is compulsory array Specifies the array to...
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PHP array diff_ukey() Function The array_diff_ukey() is an inbuilt function in PHP. The array_diff_ukey() function compares the keys of two or more arrays with a user-defined function, and returns an array that contains the entries from array1 that are not present in array2 or array3, etc. This...
2 min read
The array_search() function is an inbuilt function of PHP. It is used to search the array against the given value. The function returns the first corresponding key if successful. This function was introduced in PHP 4.0.5. Syntax mixed array_search ( mixed $needle , array $haystack [, bool...
1 min read
The array_diff_assoc() function is used to compare an array against another array and returns the difference. In other words, we can say that array_diff_assoc() function compares the keys and values of two or more arrays and return an array that contains the entries from array1...
1 min read
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