php实现读取和写入tab分割的文件
本文实例讲述了php实现读取和写入tab分割的文件。分享给大家供大家参考。具体分析如下:
这段php代码实现读取和写入tab分割的文件,包含两个独立的函数,一个读,一个写,例如cvs文件等
// //saveanarrayastabseperatedtextfile // functionwrite_tabbed_file($filepath,$array,$save_keys=false){ $content=''; reset($array); while(list($key,$val)=each($array)){ //replacetabsinkeysandvaluesto[space] $key=str_replace("\t","",$key); $val=str_replace("\t","",$val); if($save_keys){$content.=$key."\t";} //createline: $content.=(is_array($val))?implode("\t",$val):$val; $content.="\n"; } if(file_exists($filepath)&&!is_writeable($filepath)){ returnfalse; } if($fp=fopen($filepath,'w+')){ fwrite($fp,$content); fclose($fp); } else{returnfalse;} returntrue; } // //loadatabseperatedtextfileasarray // functionload_tabbed_file($filepath,$load_keys=false){ $array=array(); if(!file_exists($filepath)){return$array;} $content=file($filepath); for($x=0;$x<count($content);$x++){ if(trim($content[$x])!=''){ $line=explode("\t",trim($content[$x])); if($load_keys){ $key=array_shift($line); $array[$key]=$line; } else{$array[]=$line;} } } return$array; } /* **Exampleusage: */ $array=array( 'line1'=>array('data-1-1','data-1-2','data-1-3'), 'line2'=>array('data-2-1','data-2-2','data-2-3'), 'line3'=>array('data-3-1','data-3-2','data-3-3'), 'line4'=>'foobar', 'line5'=>'helloworld' ); //savethearraytothedata.txtfile: write_tabbed_file('data.txt',$array,true); /*thedata.txtcontentlookslikethis: line1data-1-1data-1-2data-1-3 line2data-2-1data-2-2data-2-3 line3data-3-1data-3-2data-3-3 line4foobar line5helloworld */ //loadthesavedarray: $reloaded_array=load_tabbed_file('data.txt',true); print_r($reloaded_array); //returnsthearrayfromabove
希望本文所述对大家的php程序设计有所帮助。