php将print_r处理后的数据还原为原始数组的解决方法

PHP print_r方法可以把变量打印显示，使变量易于理解。如果变量是string,integer或float，将打印变量值本身，如果变量是array，将会按照一定格式显示键和元素。object与数组类似。print_r用于打印数组较多。
php原生没有把print_r方法打印后的数据还原为原始数组，因此写了下面这个方法，实现将print_r处理后的数据还原为原始数组。
RestorePrint.class.php

<?php/** * 将print_r处理后的数据还原为原始数组 * Date:2016-10-31 * Author: fdipzone * Ver: 1.0 */class RestorePrint{ // class startpublic $res = array（）;protected $dict = array（）;protected $buf = "";protected $keyname = "";protected $stack = array（）;public function __construct（） {$this->stack[] =& $this->res;}public function __call（$method, $param）{echo $this->buf ." not defined mehtod:".$method. " param:".implode（",", $param）;}public function set（$word, $value=""）{if（is_array（$word））{foreach（$word as $k=>$v）{$this->set（$k, $v）;}}$p =& $this->dict;foreach（str_split（$word） as $ch）{if（！isset（$p[$ch]））{$p[$ch] = array（）;}$p =& $p[$ch];}$p["val"] = $value;return $this;}public function parse（$str）{$this->doc = $str;$this->len = strlen（$str）;$i = 0;while（$i < $this->len）{$t = $this->find（$this->dict, $i）;if（$t）{$i = $t;$this->buf = "";}else{$this->buf .= $this->doc{$i++};}}}protected function find（&$p, $i）{if（$i >= $this->len）{return $i;}$t = 0;$n = $this->doc{$i};if（isset（$p[$n]））{$t = $this->find（$p[$n], $i+1）;}if（$t）{return $t;}if（isset（$p["val"]））{$arr = explode（",", $p["val"]）;call_user_func_array（array（$this, array_shift（$arr））, $arr）;return $i;}return $t;}protected function group（）{if（！$this->keyname）{return ;}$cnt = count（$this->stack）-1;$this->stack[$cnt][$this->keyname] = array（）;$this->stack[] =& $this->stack[$cnt][$this->keyname];$this->keyname = "";}protected function brackets（$c）{$cnt = count（$this->stack）-1;switch（$c）{case "）":if（$this->keyname）{$this->stack[$cnt][$this->keyname] = trim（$this->buf）;}$this->keyname = "";array_pop（$this->stack）;break;case "[":if（$this->keyname）{$this->stack[$cnt][$this->keyname] = trim（$this->buf）;}break;case "]":$this->keyname = $this->buf;break;}$this->buf = "";}} // class end?>

demo.php

<?phprequire "RestorePrint.class.php";$print_r_data = <<<TXTArray（[name] => fdipzone[gender] => male[age] => 18[profession] => programmer[detail] => Array（[grade] => 1[addtime] => 2016-10-31））TXT;// 显示打印的数据echo "显示打印的数据<br>";echo "<pre>".$print_r_data."</pre>";$oRestorePrint = new RestorePrint;$oRestorePrint->set（"Array", "group"）;$oRestorePrint->set（" [", "brackets,["）;$oRestorePrint->set（"] => ", "brackets,]"）;$oRestorePrint->set（"）", "brackets,）"）;$oRestorePrint->parse（$print_r_data）;$result = $oRestorePrint->res;echo "还原为数组<br>";var_dump（$result）;?>

输出：
显示打印的数据

Array
（
    [name] => fdipzone
    [gender] => male
    [age] => 18
    [profession] => programmer
    [detail] => Array（
        [grade] => 1
        [addtime] => 2016-10-31
    ）
）

还原为数组

array （size=5）
"name" => string "fdipzone" （length=8）
"gender" => string "male" （length=4）
"age" => string "18" （length=2）
"profession" => string "programmer" （length=10）
"detail" =>
array （size=2）
"grade" => string "1" （length=1）
"addtime" => string "2016-10-31" （length=10）
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。