摘要：个人学习笔记核心源码如下打印打印单个变量打印数组前置空格打印对象前置空格测试代码效果如下
个人学习笔记
核心源码如下：
/**
* 打印
* @param array ...$params
* @author klinson
*/
function info(...$params)
{
foreach ($params as $param) {
info_item($param);
}
}
/**
* 打印单个变量
* @param $param
* @param int $i
* @author klinson
*/
function info_item($param, $i = 0)
{
switch (gettype($param)) {
case "array":
info_array($param, $i);
break;
case "object":
info_object($param, $i);
break;
case "boolean":
echo "bool(".($param ? "true" : "false").")";
break;
case "integer":
echo "int({$param})";
break;
case "string":
echo "string({$param})";
break;
case "double":
echo "float({$param})";
break;
case "null":
echo "null";
break;
case "resource":
echo "resource";
break;
default:
echo "UNKNOWN TYPE";
break;
}
echo PHP_EOL;
}
/**
* 打印数组
* @param $param
* @param int $i
* @author klinson
*/
function info_array($param, $i = 0)
{
// 前置空格
$space = "";
$num = $i;
while ($num) {
$space .= " ";
$num--;
}
echo "array[".count($param)."]: {".PHP_EOL;
foreach ($param as $key => $item) {
echo $space." [{$key}] => ";
info_item($item, $i+1);
}
echo $space."}";
}
/**
* 打印对象
* @param $param
* @param int $i
* @author klinson
*/
function info_object($param, $i = 0)
{
// 前置空格
$space = "";
$num = $i;
while ($num) {
$space .= " ";
$num--;
}
echo "object(".get_class($param)."[".count($param)."]): {".PHP_EOL;
foreach ($param as $key => $item) {
echo $space." [{$key}] => ";
info_item($item, $i+1);
}
echo $space."}";
}
测试代码：
$a = 1.11;
$b = "a";
$c = [$a, $b];
$d = new stdClass();
$d->aaa = "aaa";
$d->bb = $c;
info($a, $b, $c, $d);
效果如下:
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