How to determine if an array is not empty in php

How to determine if the array is empty in php

1. Use the function "empty()" to determine and pass the array into this function , if it is true, it means it is empty;

$arr = [];

if (empty($arr)) {
  //为空
} else {
  //不为空
}

2. Use the "count()" function to get the number of array items, and then judge whether it is less than 1 based on the number of items. If it is less than 1, it means it is empty;

$arr = [];

if (count($arr) < 1) {
  //为空
} else {
  //不为空
}

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