Remove new lines from string and replace with one empty space

Question

string     put returns between paragraphs  for linebreak add 2 spaces at end       Want to remove all new lines from string   I ve this regex  it can catch all of them  the problem is I don t know with which function should I use it     r n  r  n     string should become    string    put returns between paragraphs for linebreak add 2 spaces at end

User · Accepted Answer

You have to be cautious of double line breaks, which would cause double spaces. Use this really efficient regular expression:

$string = trim(preg_replace('/\s\s+/', ' ', $string));

Multiple spaces and newlines are replaced with a single space.

Edit: As others have pointed out, this solution has issues matching single newlines in between words. This is not present in the example, but one can easily see how that situation could occur. An alternative is to do the following:

$string = trim(preg_replace('/\s+/', ' ', $string));

User · Answer

This one also removes tabs   string   preg replace     r n t           text

User · Answer

Whats about    string   trim  str replace  PHP EOL        string        This should be a pretty robust solution because  n doesn t work correctly in all systems if i m not wrong

User · Answer

Many of these solutions didn t work for me  This did the trick though -   svgxml   preg replace     BSR ANYCRLF  R       svgxml     Here is the reference - PCRE and New Lines

User · Answer

You can remove new line and multiple white spaces    pattern       r n s        name  test1                        test1    name   preg replace   pattern    1  2   name    echo  name

User · Answer

You can try below code will preserve any white-space and new lines in your text    str     put returns between paragraphs  for linebreak add 2 spaces at end      echo preg replace     r  n         str

User · Answer

Just use preg replace     string   preg replace     r n           string     You could get away with str replace   on this one  although the code doesn t look as clean    string   str replace array   n     r         string     See it live on ideone

User · Answer

You should use str replace for its speed and using double quotes with an array  str replace array   r n    r       string

User · Answer

A few comments on the accepted answer   The   means  1 or more   I don t think you need to repeat  s  I think you can simply write    s      Also  if you want to remove whitespace first and last in the string  add trim   With these modifications  the code would be    string   preg replace    s          trim  string

User · Answer

Use this   replace series of newlines with an empty string    string   preg replace      n  r           string     or you probably want to replace newlines with a single space    string   preg replace      n  r            string

User · Answer

Line breaks in text are generally represented as    r n - on a windows computer   r - on an Apple computer   n - on Linux    Removes all 3 types of line breaks   string   str replace   r        string     string   str replace   n        string

User · Answer

this below code work all text please use it    des   str replace   n       des    des   str replace   r       des

User · Answer

Escape sequence  R matches a generic newline     that is  anything considered a linebreak sequence by Unicode  This includes all characters matched by  v  vertical whitespace   and the multi character sequence  x0D x0A       string   preg replace    R           string        In 8-bit non-UTF-8 mode  R is equivalent to the following     gt  r n  n  x0b  f  r  x85     pcre org   Regex101 Demo

User · Answer

maybe this works    str   n   echo str replace   n      str

User · Answer

this is the pattern I would use   string   preg replace     s  2          string

User · Answer

PCRE regex replacements can be done using preg replace  http   php net manual en function preg-replace php   new string   preg replace    r n  r  n          old string     Would replace new line or return characters with a space  If you don t want anything to replace them  change the 2nd argument to

User · Answer

I m not sure if this has any value against the already submitted answers but I can just as well post it      Create an array with the values you want to replace  searches   array   r     n     r n        Replace the line breaks with a space  string   str replace  searches        string       Replace multiple spaces with one  output   preg replace    s           string

User · Answer

string   str replace array   n     r          string

User · Answer

I was surprised to see how little everyone knows about regex   Strip newlines in php is   str   preg replace    r  n           str     In perl   str    s  r  n    g    Meaning replace any newline character at the end of the line  for efficiency  - optionally preceded by a carriage return - with a space    n or  015 is newline   r or  012 is carriage return    in regex means match 1 or zero of the previous character    in regex means match end of line   The original and best regex reference is perldoc perlre  every coder should know this doc pretty well  http   perldoc perl org perlre html Note not all features are supported by all languages

[php] Remove new lines from string and replace with one empty space

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