php入门之 js数组遍历与php的区别

16lz 2021-04-30

JS

<script>
  //js需要先申明变量
  let arr= ["apple","banana","orange","cherry","lemon"];
  for (let i=0; i<arr.length ;i++) {
      console.log(arr[i]);
  }
  arr.forEach(arr=>console.log(arr));
  </script>

PHP

<?php
//php数组遍历
//变量不需要声明直接使用
$arrs = ["apple","banana","orange","cherry","lemon"];
for($i=0;$i<count($arrs);$i++) {
  echo $arrs[$i] ."<br>";
};
echo "<hr>";
foreach($arrs as $arr) {
  echo $arr;
}
?>

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