Search array by key php
(PHP 4 >= 4.0.5, PHP 5, PHP 7, PHP 8) Show array_search — Searches the array for a given value and returns the first corresponding key if successful Descriptionarray_search(mixed Parametersneedle The searched value.
haystack The array. strict If the third parameter Return Values Returns the key for If Warning This function may return Boolean ExamplesExample #1 array_search() example
See Also
turabgarip at gmail dot com ¶ 5 years ago
cue at openxbox dot com ¶ 19 years ago
while (($key = array_search("a", $code)) != NULL)
stefano@takys dot it ¶ 11 years ago
opencart dot ocfilter at gmail dot com ¶ 1 year ago
(array_search('needle', [ 0 => 0 ])); // int(0) (!)var_dump(array_search('needle', [ 0 => 0 ], true)); // bool(false)?> nordseebaer at gmx dot de ¶ 2 years ago
yasien dot dwieb at gmail dot com ¶ 2 years ago
thinbegin at gmail dot com ¶ 4 years ago
maciej at speccode dot com ¶ 7 years ago
= [ RichGC ¶ 16 years ago
$i = array_search("apple", $fruit_array)) n-regen ¶ 13 years ago
codeslinger at compsalot dot com ¶ 13 years ago
[$index] = array('key'=>$key, 'data'=>'foo');
helenadeus at gmail dot com ¶ 13 years ago
= array('a','b','a','b');$needle = 'a';print_r(array_search_all($needle, $haystack));//Output will be stooshie at gmail dot com ¶ 10 years ago
azaozz, gmail ¶ 13 years ago
.array_search("str1", $a, true).", andreas dot damm at maxmachine dot de ¶ 14 years ago
kermes [at] thesevens [dot] net ¶ 15 years ago
$result; How do I find a key in an array?PHP array_key_exists() Function
The array_key_exists() function checks an array for a specified key, and returns true if the key exists and false if the key does not exist.
What is array_search in PHP?The array_search() is an inbuilt function in PHP that is used to search for a particular value in an array, and if the value is found then it returns its corresponding key. If there are more than one values then the key of the first matching value will be returned.
How do I find associative array in PHP?How to check if PHP array is associative or sequential? There is no inbuilt method in PHP to know the type of array. If the sequential array contains n elements then their index lies between 0 to (n-1). So find the array key value and check if it exist in 0 to (n-1) then it is sequential otherwise associative array.
How do you search an array?Use filter if you want to find all items in an array that meet a specific condition. Use find if you want to check if that at least one item meets a specific condition. Use includes if you want to check if an array contains a particular value. Use indexOf if you want to find the index of a particular item in an array.
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