PHP implements interception of Chinese strings without appearing

The example in this article describes the solution of PHP intercepting Chinese strings without the ? sign. Share it with everyone for your reference, the details are as follows:

When PHP intercepts a mixed string of Chinese and English, the last Chinese character is often split into two halves, for example: intercepting the first 18 characters of the string

<?php
$text = "1欢迎访问sina新浪播客";
$value = substr($text, 0, 18);
echo $value."<BR>";
?>

The output is:

1欢迎访问新浪?BR>

So I wrote the following code to determine if the number of Chinese character bytes in a mixed Chinese and English string is an odd number , then one less byte will be intercepted to ensure complete display of Chinese characters.

<?php
$text = "1欢迎访问sina新浪播客";
$value = substr($text, 0, 18);
$value_length = strlen($value);
$value_count = 0;
for ($i = 0; $i < $value_length; $i++)
{
  if (ord($value{$i}) > 127)
  {
    $value_count++;
  }
}
if ($value_count % 2 != 0)
{
  $value = substr($text, 0, $value_length - 1);
}
echo $value."<BR>";
?>

The output is:

1欢迎访问sina新浪

I hope this article will be useful to everyone in PHP programming. helped.

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