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PHP method to restore the data processed by print_r to the original array
- 黄舟Original
- 2017-02-17 09:57:521443browse
php The print_r method can print and display variables to make them easy to understand. If the variable is a string, integer or float, the variable value itself will be printed. If the variable is an array, the keys and elements will be displayed in a certain format. object is similar to an array. print_r is used to print large arrays.
PHP natively does not restore the data printed by the print_r method to the original array, so the following method was written to restore the data processed by print_r to the original array.
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 start
public $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 = <<<TXT
Array
(
[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 class="brush:php;toolbar:false">'.$print_r_data.'';
$oRestorePrint = new RestorePrint;
$oRestorePrint->set('Array', 'group');
$oRestorePrint->set(' [', 'brackets,[');
$oRestorePrint->set('] => ', 'brackets,]');
$oRestorePrint->set(')', 'brackets,)');
$oRestorePrint->parse($print_r_data);
$result = $oRestorePrint->res;
echo '还原为数组'; var_dump($result);?>
Output:
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)
Source code download address : Click to view
php The print_r method can print and display variables to make them easy to understand. If the variable is a string, integer or float, the variable value itself will be printed. If the variable is an array, the keys and elements will be displayed in a certain format. object is similar to an array. print_r is used to print large arrays.
php natively does not restore the data printed by the print_r method to the original array, so the following method was written to restore the data processed by print_r to the original array.
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 start
public $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 = <<<TXT
Array
(
[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 class="brush:php;toolbar:false">'.$print_r_data.'';
$oRestorePrint = new RestorePrint;$oRestorePrint->set('Array', 'group');
$oRestorePrint->set(' [', 'brackets,[');
$oRestorePrint->set('] => ', 'brackets,]');
$oRestorePrint->set(')', 'brackets,)');
$oRestorePrint->parse($print_r_data);
$result = $oRestorePrint->res;echo '还原为数组'; var_dump($result);?>
Output:
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)
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