PHP는 문자열을 처리합니다

1. 문자열 길이를 가져옵니다.

<code><span>$str</span> = <span>'abc'</span>;
<span>$str1</span>=<span>'中文'</span>;
<span>echo</span> strlen(<span>$str</span>),<span>'<br/>'</span>,strlen(<span>$str1</span>); 

输出结果：
<span>3</span><span>6</span></code>

2. 문자열을 찾습니다.

<code>//查找字符串首次出现的位置
<span>$char</span> = <span>'a'</span>;
<span>$str</span> = <span>'abc'</span>;
<span>$bRet</span> = strpos(<span>$str</span>,<span>$char</span>);

<span>if</span>(<span>$bRet</span> === <span>false</span>)
{
    <span>echo</span><span>"<span>$str</span> 中不含有<span>$char</span> "</span>;
}<span>else</span>
{
    <span>echo</span><span>"<span>$str</span> 中含有<span>$char</span> "</span>;
}
<span>echo</span><span>'<br />'</span>;

输出结果：
abc 中含有a </code>

3. 문자열을 바꿉니다. , 문자열

<code><span>//替换字符串str_replace()</span><span>$str</span> = <span>'Good morning'</span>;
<span>$str1</span> = str_replace(<span>'moring'</span>,<span>'afternoon'</span>,<span>$str</span>);
<span>echo</span><span>$str</span>, <span>'<br/>'</span>, <span>$str1</span>;

输出结果：
Good morning
Good morning

<span>//替换字符串strtr()</span><span>$str</span> = <span>'上车，上课，上班，下车，下课，下班'</span>;
<span>$str1</span> = strtr(<span>$str</span>,[<span>'上'</span>=><span>'下'</span>,<span>'下'</span>=><span>'上'</span>]);
<span>echo</span><span>$str</span>,<span>'<br / >'</span>,<span>$str1</span>;

输出结果：
上车，上课，上班，下车，下课，下班
下车，下课，下班，上车，上课，上班</code>

을 차단합니다. 5. 문자열 분할

<code><span>//截取字符串substr()，参数分别为目标字符串，起始位置，截取长度</span><span>$str</span> = <span>'East,west,home is best'</span>;
<span>echo</span><span>$str</span>,<span>'<br/>'</span>,substr(<span>$str</span>,<span>0</span>,<span>4</span>);

输出结果：
East,west,home is best
East</code>

6. 배열을 문자열

<code><span>//拆分字符串explode()</span><span>$str</span> = <span>'厨子, 戏子, 痞子'</span>;
<span>$arr</span> = explode(<span>','</span>,<span>$str</span>);
<span>echo</span><span>$str</span>,<span>'<br/>'</span>;
print_r(<span>$arr</span>);

输出结果：
厨子, 戏子, 痞子
<span>Array</span> ( [<span>0</span>] => 厨子 [<span>1</span>] => 戏子 [<span>2</span>] => 痞子 )</code>

').addClass(' pre-numbering'으로 병합합니다. ).숨다(); $(this).addClass('has-numbering').parent().append($numbering); for (i = 1; i

').text(i)); }; $numbering.fadeIn(1700); }); });

<code><span>$arr</span>=[<span>'0'</span>=><span>'厨子'</span>,<span>'1'</span>=><span>'戏子'</span>,<span>'2'</span>=><span>'痞子'</span>];
<span>$str</span>=implode(<span>$arr</span>,<span>';'</span>);
print_r(<span>$arr</span>);
<span>echo</span><span>'<br/>'</span>;
<span>echo</span><span>$str</span>;

输出结果：
<span>Array</span> ( [<span>0</span>] => 厨子 [<span>1</span>] => 戏子 [<span>2</span>] => 痞子 ) 
厨子;戏子;痞子</code>

위 내용은 내용의 측면을 포함하여 PHP에서 문자열을 처리하는 방법을 소개합니다. PHP 튜토리얼에 관심이 있는 친구들에게 도움이 되기를 바랍니다.