วิธีตรวจดูเป็น numeric หรือไม่ได้อยู่ใน php

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5
0

โปรดตรวจสอบว่าข้อความเป็นจำนวนหรือไม่ php

$var_num = "1";
$var_str = "Hello World";

var_dump( is_numeric($var_num), is_numeric($var_str) );

/* 
Output -
 bool(true)
 bool(false)
*/
2
0

php ตรวจสอบว่าข้อความหรือเบอร์

 <?php if (is_numeric(887)) { echo "Yes"; } else { echo "No"; } ?>

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