技术问答php substr涓庢鍒欒〃杈惧紡缁撳悎 - 扬州沐宇科技

鍦?PHP 涓紝鍙互閫氳繃缁撳悎浣跨敤 substr 鍜屾鍒欒〃杈惧紡鏉ユ彁鍙栧瓧绗︿覆涓殑鐗瑰畾閮ㄥ垎銆?/p>

渚嬪锛屽亣璁炬垜浠湁涓€涓瓧绗︿覆鈥淗ello, my name is John鈥濓紝鎴戜滑鎯虫彁鍙栧叾涓殑鍚嶅瓧閮ㄥ垎銆傛垜浠彲浠ヤ娇鐢ㄦ鍒欒〃杈惧紡鏉ュ尮閰?"my name is " 鍚庨潰鐨勯儴鍒嗭紝鐒跺悗鍐嶄娇鐢?substr 鏉ユ彁鍙栧悕瀛楅儴鍒嗐€?/p>

$str = "Hello, my name is John";
$pattern = '/my name is (.*)/';
if (preg_match($pattern, $str, $matches)) {
    $name = $matches[1];
    echo $name;
}

鍦ㄤ笂闈㈢殑渚嬪瓙涓紝鎴戜滑棣栧厛瀹氫箟浜嗕竴涓鍒欒〃杈惧紡妯″紡 '/my name is (.)/'锛屽叾涓?(.) 琛ㄧず鍖归厤浠绘剰瀛楃銆傜劧鍚庝娇鐢?preg_match 鍑芥暟鏉ュ尮閰嶅瓧绗︿覆 $str 鍜屾鍒欒〃杈惧紡 $pattern锛屽皢鍖归厤缁撴灉瀛樺偍鍦?$matches 鏁扮粍涓€傛渶鍚庨€氳繃 $matches[1] 鑾峰彇鍚嶅瓧閮ㄥ垎骞惰緭鍑恒€?/p>

杩欐牱缁撳悎浣跨敤 substr 鍜屾鍒欒〃杈惧紡锛屽彲浠ユ柟渚垮湴浠庡瓧绗︿覆涓彁鍙栨垜浠兂瑕佺殑閮ㄥ垎銆?/p>