本文实例讲述了php删除txt文件指定行及按行读取txt文档数据的方法。分享给大家供大家参考,具体如下:
向txt文件循环写入值:
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$keys = range(1,999);
$file = fopen ( 'key_11010000.txt' , "w" );
foreach ( $keys as $key ){
fwrite( $file , "$key\r\n" );
}
fclose( $file );
$f1 = fopen ( 'key_11010000.txt' , 'r' );
while (! feof ( $f1 )){
$line = fgets ( $f1 );
$line = trim( $line );
$arr [] = $line ;
}
$keys = array_filter ( $arr );
var_dump( $keys );
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按行读取txt文档数据:
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$f1 = fopen ( 'key_11010000.txt' , 'r' );
while (! feof ( $f1 )){
$line = fgets ( $f1 );
$line = trim( $line );
$arr [] = $line ;
}
$keys = array_filter ( $arr );
var_dump( $keys );
die ;
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希望本文所述对大家PHP程序设计有所帮助。