Question

美好的一天。

我们有代码：

function testfunc($text){
 return $text;
}


$text = "Simple text {testfunc(1)} and next simple text and we {testfunc(20)} are happy ";
// number in {testfunc()} only for example - it can be other number or text.

请告诉我如何在结果函数testfunc（$ num）上替换{testfunc(1)}？

P.S。：结果需要下一个文字：

$text = "Simple text 1 and next simple text and we 20 are happy ";

Answer 1

试试这个：

$newText = preg_replace_callback("/\{testfunc\((\d+)\)\}/","testfunc",$text);

您将在＆＃34; testfunc＆＃34;中获得一系列匹配项。对于你想要的，这段代码：

我认为，它可以帮助你。

<?php

function testfunc($text){
    return $text[1];
}


$text = "Simple text {testfunc(1)} and next simple text and we {testfunc(20)} are happy ";
$newText = preg_replace_callback("/\{testfunc\((\d+)\)\}/","testfunc",$text);

echo $text."\n";
echo $newText."\n";
?>

Answer 2

这应该可以使用字符串连接：

$text = "Simple text " . testfunc(1) . " and next simple text and we " . testfunc(20) . " are happy ";

Answer 3

尝试

$text = "Simple text ".testfunc(1)." and next simple text and we ".testfunc(20)." are happy ";

Answer 4

正常情况下为什么不试试，

$text = "Simple text ".testfunc(1)." and next simple text and we ".testfunc(20)." are happy ";

Answer 5

<?php
     $text = "Simple text ".testfunc(1)." and next simple text and we ".testfunc(20)." are
happy";
echo $text;
?>

如何更改（替换）文本中的元素？

5 个答案: