How can I put strings in an array split by new line

Question

I have a string with line breaks in my database  I want to convert that string into an array  and for every new line  jump one index place in the array   If the string is   My text1 My text2 My text3   The result I want is this   Array        0    gt  My text1      1    gt  My text2      2    gt  My text3

User · Answer

you can use this     str getcsv  str PHP EOL

User · Answer

PHP already knows the current system s newline character s   Just use the EOL constant   explode PHP EOL  string

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str    My text1 nMy text2 nMy text3    arr   explode   n    str    foreach    arr  as   line num    gt    line             echo   Line    lt b gt   line num  lt  b gt            htmlspecialchars  line        lt br    gt  n       true array    str    My text1 nMy text2 nMy text3    arr   explode   n    str     array   array       inisiasi variable array in format array  foreach   arr as  line       loop line by line and convert into array      array      line      print r  array      display all value  echo  array 1      diplay index 1   Embed Online    x000D   x000D  body  html  iframe    x000D    width  100    x000D    height  100    x000D    overflow  hidden   x000D    x000D   lt iframe src  https   ideone com vE1gst   gt  lt  iframe gt  x000D   x000D   x000D

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A line break is defined differently on different platforms   r n   r or  n   Using RegExp to split the string you can match all three with  R  So for your problem    array   preg split      R   m    string     That would match line breaks on Windows  Mac and Linux

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David  Great direction  but you missed  r  this worked for me    array   preg split     r n  n  r      string

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explode   n    str     The    instead of    is quite important as otherwise  the line break wouln t get interpreted

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You don t need preg   functions nor preg patterns nor str replace within  etc    in order to sucessfuly break a string into array by newlines  In all scenarios  be it Linux Mac or m   this will do     lt  php     array   explode PHP EOL   string               string   implode PHP EOL   array      gt       PHP EOL is a constant holding the line break character s  used by the server platform

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That s my way    lines   preg split     r n       db text  NULL  PREG SPLIT NO EMPTY     This also will skip all empty lines too

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Picked this up in the php docs    lt  php      split the phrase by any number of commas or space characters       which include       r   t   n and  f     keywords   preg split     s        hypertext language  programming      print r  keywords     gt

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You can use the explode function  using   n  as separator    your array   explode   n    your string from db     For instance  if you have this piece of code    str    My text1 nMy text2 nMy text3    arr   explode   n    str   var dump  arr     You d get this output   array   0   gt  string  My text1   length 8    1   gt  string  My text2   length 8    2   gt  string  My text3   length 8     Note that you have to use a double-quoted string  so  n is actually interpreted as a line-break   See that manual page for more details

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lt anti-answer gt    As other answers have specified  be sure to use explode rather than split because as of PHP 5 3 0 split is deprecated  i e  the following is NOT the way you want to do it    your array   split chr 10    your string     LF     n    chr 10   CR     r    chr 13    lt  anti-answer gt

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An alternative to Davids answer which is faster  way faster  is to use str replace and explode    arrayOfLines   explode   n                       str replace    r n    n r    r     n   str                   What s happening is  Since line breaks can come in different forms  I str replace  r n   n r  and  r with  n instead  and original  n are preserved   Then explode on  n and you have all the lines in an array   I did a benchmark on the src of this page and split the lines 1000 times in a for loop and  preg replace took an avg of 11 seconds str replace  amp  explode took an avg of about 1 second  More detail and bencmark info on my forum

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This method always works for me    uniquepattern  gd     amp      Any set of characters which you dont expect to be present in user input   POST  text   better use atleast 32 charecters   textarray explode  uniquepattern str replace   r     str replace   n   uniquepattern   POST  text

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StackOverflow will not allow me to comment on hesselbom s answer  not enough reputation   so I m adding my own      array   preg split    s  R s     trim  text   NULL  PREG SPLIT NO EMPTY     This worked best for me because it also eliminates leading  second  s   and trailing  first  s   whitespace automatically and also skips blank lines  the PREG SPLIT NO EMPTY flag    -  OPTIONS  -  If you want to keep leading whitespace  simply get rid of the second  s  and make it an rtrim   instead      array   preg split    s  R    rtrim  text   NULL  PREG SPLIT NO EMPTY     If you need to keep empty lines  get rid of the NULL  it is only a placeholder  and PREG SPLIT NO EMPTY flag  like so      array   preg split    s  R s     trim  text      Or keeping both leading whitespace and empty lines      array   preg split    s  R    rtrim  text      I don t see any reason why you d ever want to keep trailing whitespace  so I suggest leaving the first  s  in there  But  if all you want is to split by new line  as the title suggests   it is THIS simple  as mentioned by Jan Goyvaerts       array   preg split    R     text

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You can do a  string   nl2br  string  so that your line break is changed to    lt br   gt      This way it does not matter if the system uses  r n or  n or  r  Then you can feed it into an array    array   explode   lt br   gt     string

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For anyone trying to display cronjobs in a crontab and getting frustrated on how to separate each line  use explode     output   shell exec  crontab -l     cron array   explode chr 10   output     using   n  doesnt seem to work but chr 10  works nicely  D  hope this saves some one some headaches

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There is quite a mix of direct and indirect answers on this page and some good advice in comments  but there isn t an answer that represents what I would write in my own project  PHP Escape Sequence  R documentation  https   www php net manual en regexp reference escape php    text line 20break  r n Code   Demo   string     My text1  My text2   My text3       var export      preg split    R      string  0  PREG SPLIT NO EMPTY      Output  array     0   gt   My text1     1   gt   My text2     2   gt   My text3      The OP makes no mention of trimming horizontal whitespace characters from the lines  so there is no expectation of removing  s or  h while exploding on variable  system agnostic  new lines  While PHP EOL is sensible advice  it lacks the flexibility appropriately explode the string when the newline sequence is coming from another operating system  Using a non-regex explode will tend to be less direct because it will require string preparations   Furthermore  there may be mopping up after the the explosions if there are unwanted blank lines to remove  Using  R   one or more consecutive newline sequences  and the PREG SPLIT NO EMPTY function flag will deliver a gap-less  indexed array in a single  concise function call   Some people have a bias against regular expressions  but this is a perfect case for why regex should be used   If performance is a concern for valid reasons  e g  you are processing hundreds of thousands of points of data   then go ahead and invest in benchmarking and micro-optimization   Beyond that  just use this one-line of code so that your code is brief  robust  and direct

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Using only the  base  package is also a solution for simple cases    gt  s  lt -  a nb rc r nd   gt  l  lt - strsplit s   r n  n  r    gt  l    the whole list      1    1   a   b   c   d   gt  l  1   1        or individual elements  1   a   gt  l  1   2   1   b   gt  fun  lt - function x  c  Line content    x    handle as you wish  gt  lapply unlist l   fun

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I ve always used this with great success    array   preg split    r n  n  r     string      updated with the final  r  thanks  LobsterMan

[php] How can I put strings in an array, split by new line?

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