摘要：個人學習筆記核心源碼如下打印打印單個變量打印數組前置空格打印對象前置空格測試代碼效果如下
個人學習筆記
核心源碼如下：
/**
* 打印
* @param array ...$params
* @author klinson
*/
function info(...$params)
{
foreach ($params as $param) {
info_item($param);
}
}
/**
* 打印單個變量
* @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;
}
/**
* 打印數組
* @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."}";
}
/**
* 打印對象
* @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."}";
}
測試代碼：
$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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