Php ตรวจสอบว่าข้อความบรรจุคำ
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php ตรวจสอบว่าข้อความบรรจุคำ
$myString = 'Hello Bob how are you?';
if (strpos($myString, 'Bob') !== false) {
echo "My string contains Bob";
}php ตรวจสอบว่าข้อความบรรจุคำ
$myString = 'Hello Bob how are you?';
if (strpos($myString, 'Bob') !== false) {
echo "My string contains Bob";
}php ตรวจสอบว่าจะบรรจุข้อความ
// returns true if $needle is a substring of $haystack
function contains($haystack, $needle){
return strpos($haystack, $needle) !== false;
}ยังไงฉันตรวจสอบว่าเป็นบรรจุข้อความมีเหยื่อที่เป็นคำพูดน่ะเหรอ?
$a = 'Hello world?';
if (strpos($a, 'Hello') !== false) { //PAY ATTENTION TO !==, not !=
echo 'true';
}
if (stripos($a, 'HELLO') !== false) { //Case insensitive
echo 'true';
}php มีส่วนข้อความอยู่ว่า
<?php
$mystring = 'abc';
$findme = 'a';
$pos = strpos($mystring, $findme);
// Note our use of ===. Simply == would not work as expected
// because the position of 'a' was the 0th (first) character.
if ($pos === false) {
echo "The string '$findme' was not found in the string '$mystring'";
} else {
echo "The string '$findme' was found in the string '$mystring'";
echo " and exists at position $pos";
}
?>
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