PHP returns the elements in the array current() function usage summary

The current() function in php returns the current element (unit) in the array. Each array has an internal pointer pointing to its "current" unit, which initially points to the first unit inserted into the array. If we execute current once, the internal pointer will point to the next unit, and we can use current to get the value of the current unit in the array. This article collects several articles on the usage of PHP's array operation function current(). I hope it will be helpful to everyone's understanding of array operations.

1.

php array function current() definition and usage

The current() function in php returns the current element (unit) in the array, if the current element is If it is empty or the current element has no value, it returns FALSE. Each array has an internal pointer pointing to its "current" element, which initially points to the first element inserted into the array

. This function does not move the internal pointer of the array. If you need to move the pointer, you need to cooperate with other functions. Let’s take a look.

2.

Detailed explanation of the usage examples of php end() function and current() function

The end() function in php points the pointer inside the array to the last element. If Successfully returns the value of the element; and the current() function returns the current element (unit, which is the first element of the array) in the array. One of these two functions returns the first element of the array, and the other returns the last element of the array. An element, let’s take a look at the usage of these two.

3.

php Detailed explanation of the usage examples of the array operation current, next and reset functions

current in php The () function returns the current element (unit) in the array, which is the first element of the array. The next() function points the internal pointer to the next element in the array and outputs the value of the element. The reset() function returns The internal pointer points to the first element in the array and outputs the value of the element. This article mainly introduces the usage of current, next and reset functions in PHP, and details the functions current and next in PHP for array operations in the form of examples. The specific usage of reset has certain reference value for in-depth understanding of the usage of arrays. I hope it will be helpful for everyone to understand arrays

4.

Use key, value, current, next and prev functions in php Methods of traversing arrays

There are a series of functions in php for array traversal that allow us to operate arrays very conveniently. To traverse an array, the first step is to point the pointer to the beginning of the array and use reset( ) function.

Use the prev() and next() functions to view the previous and next elements of the array. You can use the current() function to obtain the current value and the key() function to obtain the key value.

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