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如何在 mysql 或 php 中將 'u00e9' 轉(zhuǎn)換為 utf8 字符?
P粉704196697
P粉704196697 2023-08-24 20:34:18
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<p>我正在對一些正在導入 mysql 的混亂數(shù)據(jù)進行數(shù)據(jù)清理。</p> <p>數(shù)據(jù)包含“偽”unicode 字符,這些字符實際上嵌入到字符串中,如“u00e9”等。</p> <p>所以一個字段可能是..“Jalostotitlu00e1n” 我需要撕掉那個笨拙的'u00e1n'并將其替換為相應的utf字符</p> <p>我可以在 mysql 中執(zhí)行此操作,也許使用子字符串和 CHR,但我通過 PHP 預處理數(shù)據(jù),所以我也可以在那里執(zhí)行此操作。</p> <p>我已經(jīng)知道如何配置 mysql 和 php 以使用 utf 數(shù)據(jù)。問題實際上出在我導入的源數(shù)據(jù)中。</p> <p>謝謝</p>
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P粉743288436

/* php 將 utf8 html 轉(zhuǎn)換為 ansi 的函數(shù) */

public static function Utf8_ansi($valor='') {

    $utf8_ansi2 = array(
    "\u00c0" =>"à",
    "\u00c1" =>"á",
    "\u00c2" =>"?",
    "\u00c3" =>"?",
    "\u00c4" =>"?",
    "\u00c5" =>"?",
    "\u00c6" =>"?",
    "\u00c7" =>"?",
    "\u00c8" =>"è",
    "\u00c9" =>"é",
    "\u00ca" =>"ê",
    "\u00cb" =>"?",
    "\u00cc" =>"ì",
    "\u00cd" =>"í",
    "\u00ce" =>"?",
    "\u00cf" =>"?",
    "\u00d1" =>"?",
    "\u00d2" =>"ò",
    "\u00d3" =>"ó",
    "\u00d4" =>"?",
    "\u00d5" =>"?",
    "\u00d6" =>"?",
    "\u00d8" =>"?",
    "\u00d9" =>"ù",
    "\u00da" =>"ú",
    "\u00db" =>"?",
    "\u00dc" =>"ü",
    "\u00dd" =>"Y",
    "\u00df" =>"?",
    "\u00e0" =>"à",
    "\u00e1" =>"á",
    "\u00e2" =>"a",
    "\u00e3" =>"?",
    "\u00e4" =>"?",
    "\u00e5" =>"?",
    "\u00e6" =>"?",
    "\u00e7" =>"?",
    "\u00e8" =>"è",
    "\u00e9" =>"é",
    "\u00ea" =>"ê",
    "\u00eb" =>"?",
    "\u00ec" =>"ì",
    "\u00ed" =>"í",
    "\u00ee" =>"?",
    "\u00ef" =>"?",
    "\u00f0" =>"e",
    "\u00f1" =>"?",
    "\u00f2" =>"ò",
    "\u00f3" =>"ó",
    "\u00f4" =>"?",
    "\u00f5" =>"?",
    "\u00f6" =>"?",
    "\u00f8" =>"?",
    "\u00f9" =>"ù",
    "\u00fa" =>"ú",
    "\u00fb" =>"?",
    "\u00fc" =>"ü",
    "\u00fd" =>"y",
    "\u00ff" =>"?");

    return strtr($valor, $utf8_ansi2);      

}
P粉198814372

有一個辦法。將所有 uXXXX 替換為其 HTML 表示形式,并執(zhí)行 html_entity_decode()

echo html_entity_decode("Jalostotitlán");

u1234 形式的每個 UTF 字符都可以在 HTML 中打印為 ?。但是進行替換非常困難,因為如果沒有其他字符來標識 UTF 序列的開頭,則可能會出現(xiàn)很多誤報。一個簡單的正則表達式可能是

preg_replace('/u([\da-fA-F]{4})/', '\1;', $str)

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