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| array_merge (array1, array2, ...) Merges the elements of one or more arrays together so that the values of one are appended to the end of the previous one. It returns the resulting array. |
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| array_pop (array) Pops and returns the last value of the array, shortening the array by one element. If array is empty (or is not an array), NULL will be returned. |
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| array_push (array, $var)Treats array as a stack, and pushes the passed variables onto the end of array. The length of array increases by the number of variables pushed. |
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| array_rand (array) Useful when you want to pick one or more random entries out of an array. |
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| array_search (mixed $needle, array $haystack[, bool $strict ]) Searches the array for a given value and returns the corresponding key if successful, strict searches for identical. the first matching key is returned. To return the keys for all matching values, use array_keys() with the optional search_value parameter |
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| array_diff ( array $array1 , array $array2 [, array $ ... ] ) Compares array1 against array2 and returns the difference. |
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| count ( mixed $var [, int $mode = COUNT_NORMAL ] ) Counts all elements in an array, or properties in an object. mode goes w multideminsionals |
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| in_array ( mixed $needle , array $haystack [, bool $strict ] ) Checks if a value exists in an array |
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| key (array) key() returns the index element of the current array position. |
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| sort ( array &$array [, int $sort_flags = SORT_REGULAR ] ) Sorts an array. Elements will be arranged from lowest to highest when this function has completed. The optional second parameter sort_flags may be used to modify the sorting behavior using these values |
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| array_keys( array $input [, mixed $search_value [, bool $strict = false ]] ) returns the keys, numeric and string, from the input array. If the optional search_value is specified, then only the keys for that value are returned. Otherwise, all the keys from the input are returned. |
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