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I have this array in PHP:
array( [0] => array( 'username' => 'user1' ) [1] => array( 'username' => 'user2' ) ) If I have the 'username' string how can I get the index value as a number?
Example, if I have 'user1' how can I get 0?
545
The indexOf() method returns the first index (position) of a specified value. The indexOf() method returns -1 if the value is not found. The indexOf() method starts at a specified index and searches from left to right. By default the search starts at the first element and ends at the last.
indexOf() The indexOf() method returns the first index at which a given element can be found in the array, or -1 if it is not present.
The index() method returns the index of the given element in the list. If the element is not found, a ValueError exception is raised.
Using std::find_if algorithm For instance, find the index of the first 2-digit number in the array. The recommended approach is to use the std::find_if algorithm, which accepts a predicate to handle such cases. That's all about finding the index of an element in an array in C++.
Take a look at array_search.
From the PHP help file:
<?php $array = array(0 => 'blue', 1 => 'red', 2 => 'green', 3 => 'red'); $key = array_search('green', $array); // $key = 2; $key = array_search('red', $array); // $key = 1; ?> If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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