(PHP 4, PHP 5, PHP 7)
count_chars — 锟斤拷锟斤拷锟街凤拷锟斤拷锟斤拷锟斤拷锟街凤拷锟斤拷锟斤拷息
统锟斤拷 string
锟斤拷每锟斤拷锟街斤拷值锟斤拷0..255锟斤拷锟斤拷锟街的达拷锟斤拷锟斤拷使锟矫讹拷锟斤拷模式锟斤拷锟截斤拷锟斤拷锟�
string锟斤拷要统锟狡碉拷锟街凤拷锟斤拷锟斤拷
mode锟轿硷拷锟斤拷锟截碉拷值锟斤拷
锟斤拷锟捷诧拷同锟斤拷 mode锟斤拷count_chars()
锟斤拷锟斤拷锟斤拷锟叫诧拷同锟侥斤拷锟斤拷锟�
Example #1 count_chars() 示锟斤拷
<?php
$data = "Two Ts and one F.";
foreach (count_chars($data, 1) as $i => $val) {
echo "There were $val instance(s) of \"" , chr($i) , "\" in the string.\n";
}
?>
锟斤拷锟斤拷锟斤拷锟教伙拷锟斤拷锟斤拷锟�
There were 4 instance(s) of " " in the string. There were 1 instance(s) of "." in the string. There were 1 instance(s) of "F" in the string. There were 2 instance(s) of "T" in the string. There were 1 instance(s) of "a" in the string. There were 1 instance(s) of "d" in the string. There were 1 instance(s) of "e" in the string. There were 2 instance(s) of "n" in the string. There were 2 instance(s) of "o" in the string. There were 1 instance(s) of "s" in the string. There were 1 instance(s) of "w" in the string.