問題描述
我正在嘗試用另一個字符替換字符串中的某個字符.它們是相當晦澀的拉丁字符.我想用 4d9 替換字符(十六進制)259，所以我嘗試了這個:
I am trying to replace a certain character in a string with another. They are quite obscure latin characters. I want to replace character (hex) 259 with 4d9, so I tried this:
str_replace("x02x59","x04xd9",$string);
這沒有用.我該怎么做?
This didn't work. How do I go about this?
**附加信息.
謝謝 bobince，這已經成功了.雖然，我也想替換大寫的 schwa，但由于某種原因它不起作用.我將 U+018F (?) 計算為 UTF-8 0xC68F，這將替換為 U+04D8 (0xD398):
Thanks bobince, that has done the trick. Although, I want to replace the uppercase schwa also and it is not working for some reason. I calculated U+018F (?) as UTF-8 0xC68F and this is to be replaced with U+04D8 (0xD398):
$string = str_replace("xC9x99", "xD3x99", $_POST['string_with_schwa']); //lc 259->4d9
$string = str_replace( "xC68F", "xD3x98" , $string); //uc 18f->4d8
我正在將?"復制到文本框中并發布.第一個 str_replace 在小寫上工作正常，但在第二個 str_replace 中沒有檢測到大寫，奇怪.它仍然是 U+018F.我猜我可以通過 strtolower 運行字符串，但這應該可以工作.
I am copying the '?' into a textbox and posting it. The first str_replace works fine on the lowercase, but does not detect the uppercase in the second str_replace, strange. It remains as U+018F. Guess I could run the string through strtolower but this should work though.
推薦答案
U+0259 拉丁小寫字母 Schwa 在 UTF-16BE 編碼中僅編碼為字節序列 0x02,0x59.您不太可能使用 UTF-16BE 編碼的字節字符串，因為它不是一種 ASCII 兼容的編碼，而且幾乎沒有人使用它.
U+0259 Latin Small Letter Schwa is only encoded as the byte sequence 0x02,0x59 in the UTF-16BE encoding. It is very unlikely you will be working with byte strings in the UTF-16BE encoding as it's not an ASCII-compatible encoding and almost no-one uses it.
您想要使用的編碼(唯一支持拉丁語 Schwa 和 Cyrillic Sc??hwa 的 ASCII 超集編碼，因為它支持所有 Unicode 字符)是 UTF-8.確保您的輸入是 UTF-8 格式(如果它來自表單數據，則將包含表單的頁面作為 UTF-8 提供).然后，在 UTF-8 中，字符 U+0259 使用字節序列 0xC9,0x99 表示.
The encoding you want to be working with (the only ASCII-superset encoding to support both Latin Schwa and Cyrillic Schwa, as it supports all Unicode characters) is UTF-8. Ensure your input is in UTF-8 format (if it is coming from form data, serve the page containing the form as UTF-8). Then, in UTF-8, the character U+0259 is represented using the byte sequence 0xC9,0x99.
str_replace("xC9x99", "xD3x99", $string);
如果您確保在文本編輯器中將 .php 文件保存為 UTF-8-no-BOM，則可以跳過轉義直接說:
If you make sure to save your .php file as UTF-8-no-BOM in the text editor, you can skip the escaping and just directly say:
str_replace('?', '?', $string);
這篇關于替換 unicode 字符的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！