ตัวอย่างโค้ด
<?php
$my_string = "Hi there, this is a sample ";
$len = mb_strlen($my_string);
echo "The number of characters in the string is $len";
?>
ผลลัพธ์
The number of characters in the string is 27
คำอธิบาย
mb_strlen() - Multi-byte Safe นับ Characters (รวม Spaces)strlen() - นับ Bytes (ไม่เหมาะกับ UTF-8 Thai/Unicode)- ตัวแปร
$len เก็บความยาว
strlen() vs mb_strlen()
<?php
$thai = "สวัสดี";
echo "strlen: " . strlen($thai) . "\n"; // 15 (bytes: 3 bytes/char * 5)
echo "mb_strlen: " . mb_strlen($thai) . "\n"; // 5 (characters)
?>
นับเฉพาะ Non-whitespace
<?php
$str = "Hi there, this is a sample ";
echo "With spaces: " . mb_strlen($str) . "\n";
echo "Without spaces: " . mb_strlen(str_replace(' ', '', $str)) . "\n";
?>
นับ Words
<?php
$str = "Hi there, this is a sample";
echo "Word count: " . str_word_count($str) . "\n"; // 6
?>
