Using the $argv array here isn't a great example of why you might want to access the array elements as key/value pairs, but I'm writing this article for myself, and all I really need is a reminder of this PHP foreach key/value syntax. I can also loop through a PHP array by accessing the array key and value, like this: #!/usr/bin/phpįor this example, this array key/value approach results in the following output: 0 = argtest.php I'll get the following output from the script: argtest.php If I save this file as argtest.php, and then run it, like this: php argtest.php foo bar baz As foreach relies on the internal array pointer in PHP 5, changing it within the loop may lead to unexpected behavior. This means that you do not need to call reset() before a foreach loop. The following foreach loop is used for reading the element. If you have a simple one-dimensional array, like the $argv array which lets you access command line arguments, you can loop through it like this: #!/usr/bin/php In PHP 5, when foreach first starts executing, the internal array pointer is automatically reset to the first element of the array. The foreach loop can be used to read the array values only or read both keys and values of the array. Unless another command prevents or navigates PHP foreach. Iterate over only values of PHP array with key-value pairs using foreach. Iterate over key-value pairs of associative array using foreach. Iterate over array of numbers using foreach. We shall go through the following scenarios, with programs. PHP array FAQ: How do I iterate (loop) through a PHP array?Īnswer: The easiest way to loop through a PHP array is to use the PHP foreach operator. Foreach loop in the array or object it will execute the statement once, doing so from the first loop to the last loop. In PHP, foreach is a construct that allows to iterate over arrays easily.
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