fork download 
  1. <?php
  2. function fputcsv_content($fp, $array, $delimiter=",", $eol="\n") 
  3. {
  4.     static $find = ["\\r","\\n"];
  5.     static $replace = ["\r","\n"];
  6.     static $cycles_count = 0;
  7.     $cycles_count++;
  8.  
  9.     $array = array_map(function($value) use($delimiter) {
  10.       return clean_value($value, $delimiter);
  11.     }, $array);
  12.     $eol = str_replace($find, $replace, $eol);
  13.  
  14.     $line = implode($delimiter, $array) . $eol;
  15.  
  16.     $return_value = $line;//fputs($fp, $line);
  17.  
  18.     /** purposefully free up the ram **/
  19.     $line = null;
  20.     $eol = null;
  21.     $array = null;
  22.  
  23.     /** trigger gc_collect_cycles() every 250th call of this method **/
  24.     if($cycles_count % 250 === 0) gc_collect_cycles();
  25.  
  26.     return $return_value;
  27. }
  28.  
  29. /** Use a second function so the GC can be triggered here
  30.   * when it returns the value and all intermediate values are free.
  31.   */
  32. function clean_value($value, $delimeter) 
  33. {
  34.    /**
  35.      *  use static values to prevent reassigning the same
  36.      *  values to the stack over and over
  37.      */
  38.    static $regex = []; 
  39.    static $find = "\r\n";
  40.    static $replace = "\n";
  41.    static $quote = '"';
  42.    if(!isset($regex[$delimeter])) {
  43.       $regex[$delimeter] = "/[$delimiter\"\n\r]/";
  44.    }
  45.    $value = trim($value);
  46.    $value = str_replace($find, $replace, $value);
  47.    if(preg_match($regex[$delimeter], $value)) {
  48.         $value = $quote.str_replace($quote, '""', $value).$quote;
  49.    }
  50.    return $value;
  51. }
  52.  
  53. echo fputcsv_content(null, ['foo', "bar\n\rbaz", "hello world!",'test " test']);
Success #stdin #stdout #stderr 0.03s 26168KB
comments (?)
stdin 
Standard input is empty
stdout 
foo,"bar

baz",hello world!,"test "" test"
stderr 
PHP Notice:  Undefined variable: delimiter in /home/op1lDI/prog.php on line 43
https://ideone.com/dNkxIE
language:
PHP (php 7.3.5)
created:
4 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!