str_replace 函数无法替换多个值

Question

我有一组字符串，需要使用 str)replace 替换它们，因为我们遍历查询，因为查询成功需要替换 PHP 中的每个值。<?phpinclude_once("con.php");$db = new Da();$con = $db->con();$lclString = "{{ONE}} {{TWO}} {{THREE}} {{FOUR}} {{FIVE}} {{SIX}}"; $lclCount = 1; if(preg_match_all("/\{\{[^{}]+\}\}/", $lclString, $matches)) {    foreach ($matches[0] as $match) {        $lclQuery = "SELECT link, link_value FROM student WHERE link_value = '".$match."'";        $lclResult = $connString->query($lclQuery);        while($row = $lclResult->fetch(PDO::FETCH_ASSOC)) {            $lclNewValue = str_replace($match, $row['link'], $lclString);            }        }        echo json_encode($NewValue); } ?>这里只发生了第二次更换。

Answer 1

<?php

include_once("con.php");

$db = new Da();

$con = $db->con();

$lclString = "{{ONE}} {{TWO}} {{THREE}} {{FOUR}} {{FIVE}} {{SIX}}";

 $lclCount = 1;

 if(preg_match_all("/\{\{[^{}]+\}\}/", $lclString, $matches)) {

 $lclNewValue = $lclString;

foreach ($matches[0] as $match) {

    $lclQuery = "SELECT link, link_value FROM student WHERE link_value = '".$match."'";

    $lclResult = $connString->query($lclQuery);

    while($row = $lclResult->fetch(PDO::FETCH_ASSOC)) {

        $lclNewValue = str_replace($match, $row['link'], $lclNewValue);

        }

    }

    echo json_encode($NewValue);

 } 

?>