php preg_match正則表達(dá)式函數(shù)實例，phppregmatch函數(shù)_PHP教程
Jul 12, 2016 am 08:55 AM
php preg_match正則表達(dá)式函數(shù)實例，phppregmatch函數(shù)
正則表達(dá)式幾乎在所有編程語言里面都會用到，本實例介紹php中正則表達(dá)式preg_match函數(shù)的應(yīng)用。
preg_match() 函數(shù)用于進(jìn)行正則表達(dá)式匹配，成功返回 1 ，否則返回 0 。
preg_match() 匹配成功一次后就會停止匹配，如果要實現(xiàn)全部結(jié)果的匹配，則需使用 preg_match_all() 函數(shù)。
語法：
| preg_match (pattern , subject, matches) |
?
| 參數(shù) | 描述 |
| pattern | 正則表達(dá)式 |
| subject | 需要匹配檢索的對象 |
| matches | 可選，存儲匹配結(jié)果的數(shù)組 |
實例：
此實例匹配大寫字母后面帶有.和空格的字符串，只能匹配到J. ，因為preg_match() 匹配成功一次后就會停止匹配，后面不會再匹配了。
?
<?<span>php
</span><span>$str</span>="Daniel J. Gross Catholic High School A. is a faith and family based community committed to developing Christian leaders through educational excellence in the Marianist tradition."<span>;
</span><span>if</span>(<span>preg_match</span>("/[A-Z]. /",<span>$str</span>,<span>$matches</span><span>)){
</span><span>print_r</span>(<span>$matches</span><span>);
}
</span>?>
輸出結(jié)果：
<span>Array</span> ( [0] => J. )
?
原文地址：http://www.manongjc.com/article/52.html
相關(guān)閱讀：
php正則表達(dá)式函數(shù)使用實例
php preg_match函數(shù)和php preg_match_al函數(shù)l實例，方法，例子
php preg_match_all()函數(shù)使用實例
php preg_match正則表達(dá)式函數(shù)實例
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