php - PHP str_replace 是否有超过 13 个字符的限制？

Question

这一直有效到第 13 个字符被击中。一旦 str_ireplace 命中 cyper 数组中的“a”，str_ireplace 就会停止工作。

数组的大小有限制吗？请记住，如果键入“abgf”，我会得到“nots”，但是如果我在应该得到“notes”的时候键入“abgrf”，我会得到“notrs”。绞尽脑汁想不出来。

$_cypher = array("n","o","p","q","r","s","t","u","v","w","x","y","z","a","b","c","d","e","f","g","h","i","j","k","l","m");

$_needle = array("a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z");


$_decryptedText = str_ireplace($_cypher, $_needle, $_text);
echo $_decryptedText;

帮忙吗？

Answer 1

使用strtr^Docs :

$_text = 'abgrf';

$translate = array_combine($_cypher, $_needle);

$_decryptedText = strtr($_text, $translate);

echo $_decryptedText; # notes

Demo

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But, was there something I was doing wrong?

它将替换每一对，在已经替换的字符串上一对接一个地替换。因此，如果您再次替换一个字符，可能会发生这种情况:

    r -> e   e -> r
abgrf -> notes -> notrs

您的 e-replacement 在您的 r-replacement 之后。