PHP历理 判断数组及输出数组 

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="renderer" content="webkit">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <title>测试</title>
    <link rel="stylesheet" href="/_/_js/layui/css/layui.css">
    <link rel="stylesheet" href="/_/_css/base.css">
    <script src="/_/_js/layui/layui.js"></script>
    <script src="/_/_js/jquery-1.10.1.min.js"></script>
</head>
<body>
<?php


function strpad($str){
    $str = preg_replace('/[^a-zA-Z0-9]/', '', $str);
    $str = substr(strtolower($str), 0, 4);
    return str_pad($str, 4, '0', STR_PAD_LEFT);
}

echo strpad('\'888888');

$arr = array();
array_push($arr, strpad('\'888888'));
array_push($arr, "首层柱箍筋的根数：");


echo '<ul><br>';


foreach ( $arr as $value ) {
    echo '<li>'.$value.'&nbsp;&nbsp;</li>';
}
$var = array([1,1,2], 2, 3);
if (is_array($var)) {
    echo "这是一个数组";
} else {
    echo "这不是一个数组";
}
echo '</ul><br>';

$arr = [];
for ($i = 0; $i < 10; $i++) {
    array_push($arr, 'a');
}
$str = implode('', $arr);
echo $str;
$str = implode('', $var);
echo $str;

?>

</body>
</html>


<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="renderer" content="webkit">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <title>测试</title>
    <link rel="stylesheet" href="/_/_js/layui/css/layui.css">
    <link rel="stylesheet" href="/_/_css/base.css">
    <script src="/_/_js/layui/layui.js"></script>
    <script src="/_/_js/jquery-1.10.1.min.js"></script>
</head>
<body>
<?php
function strpad($str){
    $str = preg_replace('/[^a-zA-Z0-9]/', '', $str);
    $str = substr(strtolower($str), 0, 4);
    return str_pad($str, 4, '0', STR_PAD_LEFT);
}

$arr = array();
array_push($arr, strpad('\'888888'));
array_push($arr, "首层柱箍筋的根数：");

if (is_array($arr)) {
    foreach($arr as $value){echo $value;}
}else{
    echo $arr;
}

echo implode('', $arr);
?>
</body>
</html>
posted @ 2025-02-23 10:02  onestopweb  阅读(6)  评论(0)    收藏  举报