is_string
variable ကို string ကို detect
မြန်မာဘာသာ
မြန်မာဘာသာ
检查变量是否为字符串类型:
<span class="token php language-php"><span class="token delimiter important"><? PHP</span> <span class="token variable">$ a</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"ဟဲလို"</span> <span class="token punctuation">;</span> <span class="token keyword">ပဲ့တင်သံ</span> <span class="token string double-quoted-string">"a"</span> <span class="token operator">။</span> <span class="token punctuation">(</span> <span class="token function">is_string</span> <span class="token punctuation">(</span> <span class="token variable">$ က</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">'string'</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">'string မဟုတ်'</span> <span class="token punctuation">'</span> <span class="token operator">။</span> <span class="token string double-quoted-string">"<br> <br>"</span> <span class="token punctuation">;</span> <span class="token variable">$ ခ</span> <span class="token operator">=</span> <span class="token number">0</span> <span class="token punctuation">;</span> <span class="token keyword">ပဲ့တင်သံ</span> <span class="token string double-quoted-string">"B"</span> <span class="token operator">။</span> <span class="token punctuation">(</span> <span class="token function">is_string</span> <span class="token punctuation">(</span> <span class="token variable">$ ခ</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">'string'</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">'ကြိုးတစ်ချောင်း'</span> <span class="token punctuation">)</span> <span class="token operator">။</span> <span class="token string double-quoted-string">"<br> <br>"</span> <span class="token punctuation">;</span> <span class="token variable">$ c</span> <span class="token operator">=</span> <span class="token number">32</span> <span class="token punctuation">;</span> <span class="token keyword">ပဲ့တင်သံ</span> <span class="token string double-quoted-string">"C သည်" ဖြစ်သည်</span> <span class="token operator">။</span> <span class="token punctuation">(</span> <span class="token function">is_string</span> <span class="token variable">)</span> <span class="token operator">?</span> 'string' <span class="token punctuation">'</span> <span class="token punctuation">'</span> <span class="token string single-quoted-string">string '</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">' string မဟုတ် '</span> <span class="token punctuation">)</span> <span class="token operator">။</span> <span class="token string double-quoted-string">"<br> <br>"</span> <span class="token punctuation">;</span> <span class="token variable">$ d</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"32"</span> <span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token string double-quoted-string">"d is"</span> <span class="token operator">။</span> <span class="token punctuation">(</span> <span class="token function">is_string</span> <span class="token punctuation">(</span> <span class="token variable">$ d</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">'string'</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">'string မဟုတ်'</span> <span class="token punctuation">'</span> <span class="token operator">။</span> <span class="token string double-quoted-string">"<br> <br>"</span> <span class="token punctuation">;</span> <span class="token variable">$ e</span> <span class="token operator">=</span> <span class="token constant boolean">စစ်မှန်တဲ့</span> <span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token string double-quoted-string">"E သည်"</span> <span class="token operator">။</span> <span class="token punctuation">(</span> <span class="token function">is_string</span> <span class="token punctuation">(</span> <span class="token variable">$ င</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">'string'</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">'string မဟုတ်'</span> <span class="token punctuation">'</span> <span class="token operator">။</span> <span class="token string double-quoted-string">"<br> <br>"</span> <span class="token punctuation">;</span> <span class="token variable">$ f</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"null"</span> <span class="token punctuation">;</span> <span class="token keyword">ပဲ့တင်သံ</span> <span class="token string double-quoted-string">"F"</span> <span class="token operator">။</span> <span class="token punctuation">(</span> <span class="token function">is_string</span> <span class="token punctuation">(</span> <span class="token variable">$ f</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">'string' '' string '</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">' string မဟုတ် '</span> <span class="token punctuation">)</span> <span class="token operator">။</span> <span class="token string double-quoted-string">"<br> <br>"</span> <span class="token punctuation">;</span> <span class="token variable">$ g</span> <span class="token operator">=</span> <span class="token punctuation">"" "" ""</span> <span class="token string double-quoted-string">"</span> <span class="token keyword">ပဲ့တင်သံ</span> <span class="token string double-quoted-string">"ဆ"</span> <span class="token operator">။</span> <span class="token punctuation">(</span> <span class="token function">is_string</span> <span class="token punctuation">(</span> <span class="token variable">$ ဂ</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">'string' '' string '</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">' ကြိုးတစ်ချောင်း '</span> <span class="token punctuation">)</span> <span class="token operator">။</span> <span class="token string double-quoted-string">"<br> <br>"</span> <span class="token punctuation">;</span> <span class="token delimiter important">></span></span>
unserialize
gettype
is_real
is_resource
var_export
is_countable
strval
is_bool
