Writing a new line to file in PHP line feed

Question

My code    i   0   file   fopen  ids txt    w    foreach   gemList as  gem        fwrite  file   gem- gt getAttribute  id       n         gemIDs  i     gem- gt getAttribute  id         i      fclose  file     For some reason  it s writing  n as a string  so the file looks like this   40119 n40122 n40120 n42155 n36925 n45881 n42145 n45880   From Google ing it tells me to use  r n  but  r is a carriage return which doesn t seem to be what I want to do  I just want the file to look like this   40119 40122 40120 42155 36925 45881 42145 45880   Thanks

User · Answer

Use PHP EOL which outputs  r n or  n depending on the OS

User · Answer

PHP EOL is a predefined constant in PHP since PHP 4 3 10 and PHP 5 0 2   See the manual posting    Using this will save you extra coding on cross platform developments     IE     data    some data  PHP EOL   fp   fopen  somefile    a    fwrite  fp   data     If you looped through this twice you would see in  somefile    some data some data

User · Answer

You can also use file put contents     file put contents  ids txt   implode   n    gemList      n   FILE APPEND

User · Answer

Replace   n  with   n   The escape sequence is not recognized when you use     See the manual   For the question of how to write line endings  see the note here  Basically  different operating systems have different conventions for line endings  Windows uses   r n   unix based operating systems use   n   You should stick to one convention  I d chose   n   and open your file in binary mode  fopen should get  wb   not  w

[php] Writing a new line to file in PHP (line feed)

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