PHP根据文件中的文本替换文本

问题描述：

i have textfile.txt:

aaa
bbb
...
zzz

i want remove some text based on text from textfile.txt

ex: we have aaa files ==> we have files

my codes still not work :

<?php
$fp = @fopen("textFile.txt", 'r'); 
$array = explode("
", fread($fp, filesize("textFile.txt")));

if (isset($_POST['btcari'])){    
    print_r(str_ireplace($array,"", $_POST['tateks']));
}
?>

thanks vo ur appreciate

答

Try this:

$array = file("textFile.txt");

function _trim( &$value, $key ) {
    $value = trim( $value );
}

// remove the newlines and extra spacing
array_walk( $array, '_trim' );

$replaceArray = array_fill( 0, count($array), '' );

if( isset( $_POST[ 'btcari' ] ) ) {
    echo str_replace( $array, $replaceArray, $_POST[ 'tateks' ] );
}

Hope it helps.

答

First read the file and change text inside it. Then write into file the new content.

$fp = @fopen("textFile.txt", 'r'); 
$array = explode("
", fread($fp, filesize("textFile.txt")));
fclose($fp);

foreach($array as $text) {

$textall .= str_replace("aaa", "", $text);

}


$fh = fopen("textFile.txt", "w") or die("Could not open log file.");
fwrite($fh, $textall) or die("Could not write file!");
fclose($fh);

答

You can use preg_replace

    $replace = "/".$_POST['tateks']."/";
    $array = preg_replace($replace , '' , $array);
    print_r($array);

答

You seem to be using wrong post parameter for replace. I tried the code and if you use $_POST[btcari'] instead of $_POST['tateks'], it works fine.

<?php
$fp = @fopen("textFile.txt", 'r'); 
$array = explode("
", fread($fp, filesize("textFile.txt")));

if (isset($_POST['btcari'])){    
    print_r(str_ireplace($array,"", $_POST['btcari']));
}
?>

Now if i send a post parameter named "btcari", it outputs the replaced text correctly.

PHP根据文件中的文本替换文本

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