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February 14, 2020 17:36
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Outputs file to small parts as keeping original file data format
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<?php | |
class splitFile{ | |
private $fileName; | |
private $filecontents; | |
private $fileLen; | |
private $PIN; | |
private $partSize; | |
function __construct($fileName, $outputFileName, $pin, $partsize) { | |
$this->fileName = $fileName; | |
$this->outputFileName = $outputFileName; | |
$this->PIN = $pin; | |
$this->partSize = ceil($partsize); | |
$this->filecontents = file_get_contents($this->fileName); | |
$this->fileLen = mb_strlen($this->filecontents); | |
} | |
function split(){ | |
$fileContents = $this->filecontents; | |
$PINlen = mb_strlen( $this->PIN ); | |
$len = $this->fileLen / $this->partSize; | |
$past = 0; | |
for($i=1; $i < $len; $i++){ | |
$splitpos = mb_strpos($fileContents, $this->PIN, $i * $this->partSize); | |
if( $i == floor($len) ){ | |
$part = mb_substr($fileContents, $past + $PINlen ); | |
}else{ | |
if($i != 1){ $marginS = $PINlen; $marginE = 0; }else{ $marginS = 0; $marginE = $PINlen; } | |
$part = mb_substr($fileContents, $past + $marginS, $splitpos - $past + $marginE ); | |
} | |
$past = $splitpos;//get previous last as current start offset | |
file_put_contents($this->outputFileName . $i . '.csv', $part); | |
} | |
return $this->outputResult(); | |
} | |
function outputResult(){ | |
$output = 'Completed!'; | |
$output .= '<br>'; | |
$output .= 'Master file size (MB):'. round($this->fileLen/(1024*1024), 1); | |
$output .= '<br>'; | |
$output .= 'Total part qty: ' . floor($this->fileLen / $this->partSize); | |
$output .= '<br>'; | |
$output .= 'Part files average size(MB): ' . round($this->partSize/(1024*1024), 2); | |
return Array('output' => $output, 'parts' => floor($this->fileLen / $this->partSize)); | |
} | |
} | |
?> |
Author
kadko
commented
Dec 2, 2019
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