Home Database Mysql Tutorial How to generate PHP array file from mysql data

How to generate PHP array file from mysql data

Apr 29, 2020 pm 12:16 PM
mysql php

实际上就是 php 将数组写入到一个文本文件或者后缀名为 .php 存储起来,使用的时候直接调用这个文件。

取mysql数据步骤忽略

(1)利用serialize将数组序列化存储为文本文件,调用时候再使用unserialize还原

$file='文件路径'; 
$array=array('s'=> array('aaa','bbb','ccc'),'d'=> array('111','222','222')); 
if(false!==fopen($file,'w+')){ 
  file_put_contents($file,serialize($array));
} 
$handle=fopen($file,'r'); 
$cacheArray=unserialize(fread($handle,filesize($file)));
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(2)利用var_export将数组直接保存为数组形式存储到文本文件中(推荐使用)

$file='文件路径'; 
$array=array('s'=> array('aaa','bbb','ccc'),'d'=> array('111','222','222')); 
$text='
if(false!==fopen($file,'w+')){ 
  file_put_contents($file,$text); 
}else{ 
  echo '创建失败'; 
}
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(3)自创的将数组保存为标准的数组格式,虽然保存时复杂了点但是调用时简单

$file='文件路径'; 
$array=array('s'=> array('aaa','bbb','ccc'),'d'=> array('111','222','222')); 
cache_write($file,$array,'rows',false); 
//写入 
function cache_write($filename,$values,$var='rows',$format=false){ 
  $cachefile=$filename; 
  $cachetext="
  return writefile($cachefile,$cachetext); 
}   
//数组转换成字串 
function arrayeval($array,$format=false,$level=0){ 
  $space=$line=''; 
  if(!$format){ 
    for($i=0;$i<=$level;$i++){ 
      $space.="\t"; 
    } 
    $line="\n"; 
  } 
  $evaluate=&#39;Array&#39;.$line.$space.&#39;(&#39;.$line; 
  $comma=$space; 
  foreach($array as $key=> $val){ 
    $key=is_string($key)?&#39;\&#39;&#39;.addcslashes($key,&#39;\&#39;\\&#39;).&#39;\&#39;&#39;:$key; 
    $val=!is_array($val)&&(!preg_match(&#39;/^\-?\d+$/&#39;,$val)||strlen($val) > 12)?&#39;\&#39;&#39;.addcslashes($val,&#39;\&#39;\\&#39;).&#39;\&#39;&#39;:$val; 
    if(is_array($val)){ 
      $evaluate.=$comma.$key.&#39;=>&#39;.arrayeval($val,$format,$level+1); 
    }else{ 
      $evaluate.=$comma.$key.&#39;=>&#39;.$val; 
    } 
    $comma=&#39;,&#39;.$line.$space; 
  } 
  $evaluate.=$line.$space.&#39;)&#39;; 
  return $evaluate; 
} 
//写入文件 
function writefile($filename,$writetext,$openmod=&#39;w&#39;){ 
  if(false!==$fp=fopen($filename,$openmod)){ 
    flock($fp,2); 
    fwrite($fp,$writetext); 
    fclose($fp); 
    return true; 
  }else{ 
    return false; 
  } }
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