比较数组并丢弃空值？ [重复]

Question

This question already has an answer here:

• Remove empty array elements 25 answers

I have two arrays, I want to return an array which contains only the keys that are in my template:

$protected template = ['name' => 'john', 'age'=> 10];

public function merge($params){

    $arr = array_intersect_key($params, $this->template);

}

The above works, but I would also like to filter out keys where the value is empty.

So if I pass in:

[name => 'jeff', age => '']

It would just filter out an array of:

[name => 'jeff']

Is there a way to do this or would it be best to just loop through the array and do an empty check?

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Answer 1

you can use array_filter to remove empty elements.

$template = array_filter($template, 'strlen')