substr_count-ʸ»úÎó´Ø¿ô

substr_count´Ø¿ô¤Ïʸ»úÎóÃæ¤ÎÆÃÄêʸ»ú¤Î½Ð¸½²ó¿ô¤òÊÖ¤¹´Ø¿ô¤Ç¤¹¡£°Ê²¼¤Ë»ÈÍÑÊýË¡¤ò¼¨¤·¤Þ¤¹¡£
//substr_count("¸¡º÷ÂоÝʸ»úÎó", "¸¡º÷ʸ»úÎó");

$str = "PHPÆþÌç¤ÈPHP¼ÂÁ©¹ÖºÂ";
$str = substr_count($str, "PHP");

$str1 = substr_count("PHPÆþÌç¤Èphp¼ÂÁ©¹ÖºÂ"); //­¡

echo $str;
echo $str1;
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¾å¤ÎÎã¤Ç¤Ï°ú¿ô¤ËÊÑ¿ôstr(PHPÆþÌç¤ÈPHP¼ÂÁ©¹ÖºÂ)¤ò¸¡º÷ÂоÝʸ»úÎó¤Ë»ØÄꤷ¡¢¸¡º÷ʸ»úÎó¤Ë"PHP"¤ò»ØÄꤷ¤Æ¤¤¤Þ¤¹¡£ ¤·¤¿¤¬¤Ã¤Æ¡¢Ê¸»úÎó"PHP"¤Î½Ð¸½²ó¿ô¤Ç¤¢¤ë 2 ¤¬¥Ö¥é¥¦¥¶¤Ë½ÐÎϤµ¤ì¤Þ¤¹¡£

­¡¤Ç¤Ï¸¡º÷ÂоݤË"PHPÆþÌç¤ÈPHP¼ÂÁ©¹ÖºÂ"¡¢¸¡º÷ʸ»úÎó¤Ë"PHP"¤ò»ØÄꤷ¤Æ¤¤¤Þ¤¹¡£ substr_count´Ø¿ô¤ÏÂçʸ»ú¡¦¾®Ê¸»ú¤ò¶èÊ̤¹¤ë¤Î¤Ç¾®Ê¸»ú¤Î"php"¤Ï¥«¥¦¥ó¥È¤µ¤ì¤º¡¢  1 ¤¬½ÐÎϤµ¤ì¤Þ¤¹¡£