PHP中的substr_replace编码 [英] substr_replace encoding in PHP

问题描述

我想写一个文本文件。当我在php中使用substr_replace时，编码会改变。它不会正确打印希腊字符。如果我不是一切都好任何建议？

 <？php 
 $ file =test.txt; 
 $ writeFile = fopen（$ file，w +）; //读取/写入
 $ myarray = array（δφδφ，δφδσδδσ，δφδφδ）; 
 $ myarray [0] = substr_replace（$ myarray [0]，ε，0,1）; 
 
 foreach（$ myarray as $ data）{
 fwrite（$ writeFile，$ data。\\\
）; 
} 
？> 
  

OUTCOME

ε φδφ

δφδσφδσ

δφδφδ

OUTCOME WITH NO substr_replace

δφδφ

δφδσφδσ

$

解决方案

b $ b

from shkspr.mobi

  function mb_substr_replace（$ original，$ replacement，$ position，$ length）
 {
 $ startString = mb_substr（$ original，0，$ position，UTF-8）; 
 $ endString = mb_substr（$ original，$ position + $ length，mb_strlen（$ original），UTF-8）; 
 
 $ out = $ startString。 $替换。 $ endString; 
 
 return $ out; 
} 
  

---

从 GitHub

 函数mb_substr_replace（$ str，$ repl，$ start，$ length = null）
 {
 preg_match_all（'/./ us'，$ str，$ ar）; 
 preg_match_all（'/./ us'，$ repl，$ rar）; 
 $ length = is_int（$ length）？ $ length：utf8_strlen（$ str）; 
 array_splice（$ ar [0]，$ start，$ length，$ rar [0]）; 
 return implode（$ ar [0]）; 
} 
  

我尝试过两者都很好

I want to write to a text file. When I use substr_replace in php the encoding changes. It doesn't print Greek Characters correctly. If I don't everything is fine. Any suggestions?

<?php
$file = "test.txt";
$writeFile = fopen($file, "w+");//read/write
$myarray = array("δφδφ","δφδσφδσ","δφδφδ");
$myarray[0] = substr_replace($myarray[0],"ε", 0,1);

foreach ($myarray as $data){      
fwrite($writeFile, $data."\n");
}
?>

OUTCOME
ε�φδφ
δφδσφδσ
δφδφδ

OUTCOME WITH NO substr_replace
δφδφ
δφδσφδσ
δφδφδ

解决方案

You can use these two functions:

from shkspr.mobi

function mb_substr_replace($original, $replacement, $position, $length)
{
 $startString = mb_substr($original, 0, $position, "UTF-8");
 $endString = mb_substr($original, $position + $length, mb_strlen($original), "UTF-8");

 $out = $startString . $replacement . $endString;

 return $out;
}

---

From GitHub

function mb_substr_replace($str, $repl, $start, $length = null)
{
    preg_match_all('/./us', $str, $ar);
    preg_match_all('/./us', $repl, $rar);
    $length = is_int($length) ? $length : utf8_strlen($str);
    array_splice($ar[0], $start, $length, $rar[0]);
    return implode($ar[0]);
}

I tried both and both work well

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