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<?php
 
$array = ['last_modified' => 'input', 'published' => 'input', 'project_content' => 'textarea'];
 
print_r(array_keys($array, "input"));

Success #stdin #stdout 0.01s 20568KB

stdin

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Standard input is empty

stdout

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Array
(
    [0] => last_modified
    [1] => published
)

https://ideone.com/8H3YEl

language:

PHP (php 7.3.5)

created:

visibility:

public

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