PCLOSE function ကိုအသုံးပြုသောအခါ Standard Error Output ကိုမည်သို့ဖမ်းယူရမည်နည်း။ လက်တွေ့ကျတဲ့ကျွမ်းကျင်မှုများကိုမျှဝေပါ

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3 ။ စံပြအမှားတစ်ခုချင်းစီကိုဖမ်းယူရန်နည်းလမ်းများ

အကယ်. သင်သည်စံသတ်မှတ်ထားသော output နှင့် standard romram romror output ကိုသီးခြားစီရလိုပါကယာယီဖိုင်များ (သို့) pipes များကိုသုံးနိုင်သည်။

ဖြေရှင်းချက် 1 - ယာယီဖိုင်သိုလှောင်မှုစံအမှားများကိုသုံးပါ

 <span><span><span class="hljs-variable">$stderrFile</span></span><span> = </span><span><span class="hljs-title function_ invoke__">tempnam</span></span><span>(</span><span><span class="hljs-title function_ invoke__">sys_get_temp_dir</span></span><span>(), </span><span><span class="hljs-string">'stderr'</span></span><span>);
</span><span><span class="hljs-variable">$cmd</span></span><span> = </span><span><span class="hljs-string">"ls /nonexistent 2&gt; <span class="hljs-subst">$stderrFile</span></span></span><span>";

</span><span><span class="hljs-variable">$handle</span></span><span> = </span><span><span class="hljs-title function_ invoke__">popen</span></span><span>(</span><span><span class="hljs-variable">$cmd</span></span><span>, </span><span><span class="hljs-string">"r"</span></span><span>);
</span><span><span class="hljs-variable">$output</span></span><span> = </span><span><span class="hljs-string">''</span></span><span>;
</span><span><span class="hljs-keyword">while</span></span><span> (!</span><span><span class="hljs-title function_ invoke__">feof</span></span><span>(</span><span><span class="hljs-variable">$handle</span></span><span>)) {
    </span><span><span class="hljs-variable">$output</span></span><span> .= </span><span><span class="hljs-title function_ invoke__">fread</span></span><span>(</span><span><span class="hljs-variable">$handle</span></span><span>, </span><span><span class="hljs-number">1024</span></span><span>);
}
</span><span><span class="hljs-variable">$status</span></span><span> = </span><span><span class="hljs-title function_ invoke__">pclose</span></span><span>(</span><span><span class="hljs-variable">$handle</span></span><span>);

</span><span><span class="hljs-variable">$stderr</span></span><span> = </span><span><span class="hljs-title function_ invoke__">file_get_contents</span></span><span>(</span><span><span class="hljs-variable">$stderrFile</span></span><span>);
</span><span><span class="hljs-title function_ invoke__">unlink</span></span><span>(</span><span><span class="hljs-variable">$stderrFile</span></span><span>);

</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"စံ output ကို:\n<span class="hljs-subst">$output</span></span></span><span>\n";
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"စံအမှား:\n<span class="hljs-subst">$stderr</span></span></span><span>\n";
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"command ကို return status ကို: <span class="hljs-subst">$status</span></span></span><span>\n";
</span></span>

ဤနည်းအားဖြင့်အသေးစိတ်အမှားအယွင်းများအတွက် output stream နှစ်ခုကိုသီးခြားစီရရှိနိုင်ပါသည်။

4 ။ ပိုမိုပြောင်းလွယ်ပြင်လွယ်ပိုက်လိုင်းထိန်းချုပ်မှုရရှိရန် proc_open ကိုသုံးပါ

Proc_open () သည်စံထည့်သွင်းမှုနှင့်အမှားအယွင်းများကိုတိုက်ရိုက်ကိုင်တွယ်ခြင်း, ၎င်းကိုအသုံးပြုရန်ပိုမိုရှုပ်ထွေးစေသည်။

 <span><span><span class="hljs-variable">$descriptorspec</span></span><span> = [
    </span><span><span class="hljs-number">0</span></span><span> =&gt; [</span><span><span class="hljs-string">"pipe"</span></span><span>, </span><span><span class="hljs-string">"r"</span></span><span>],  </span><span><span class="hljs-comment">// စံထည့်သွင်းခြင်း</span></span><span>
    </span><span><span class="hljs-number">1</span></span><span> =&gt; [</span><span><span class="hljs-string">"pipe"</span></span><span>, </span><span><span class="hljs-string">"w"</span></span><span>],  </span><span><span class="hljs-comment">// စံ output ကို</span></span><span>
    </span><span><span class="hljs-number">2</span></span><span> =&gt; [</span><span><span class="hljs-string">"pipe"</span></span><span>, </span><span><span class="hljs-string">"w"</span></span><span>]   </span><span><span class="hljs-comment">// စံအမှား</span></span><span>
];

</span><span><span class="hljs-variable">$process</span></span><span> = </span><span><span class="hljs-title function_ invoke__">proc_open</span></span><span>(</span><span><span class="hljs-string">'ls /nonexistent'</span></span><span>, </span><span><span class="hljs-variable">$descriptorspec</span></span><span>, </span><span><span class="hljs-variable">$pipes</span></span><span>);

</span><span><span class="hljs-keyword">if</span></span><span> (</span><span><span class="hljs-title function_ invoke__">is_resource</span></span><span>(</span><span><span class="hljs-variable">$process</span></span><span>)) {
    </span><span><span class="hljs-title function_ invoke__">fclose</span></span><span>(</span><span><span class="hljs-variable">$pipes</span></span><span>[</span><span><span class="hljs-number">0</span></span><span>]);

    </span><span><span class="hljs-variable">$stdout</span></span><span> = </span><span><span class="hljs-title function_ invoke__">stream_get_contents</span></span><span>(</span><span><span class="hljs-variable">$pipes</span></span><span>[</span><span><span class="hljs-number">1</span></span><span>]);
    </span><span><span class="hljs-title function_ invoke__">fclose</span></span><span>(</span><span><span class="hljs-variable">$pipes</span></span><span>[</span><span><span class="hljs-number">1</span></span><span>]);

    </span><span><span class="hljs-variable">$stderr</span></span><span> = </span><span><span class="hljs-title function_ invoke__">stream_get_contents</span></span><span>(</span><span><span class="hljs-variable">$pipes</span></span><span>[</span><span><span class="hljs-number">2</span></span><span>]);
    </span><span><span class="hljs-title function_ invoke__">fclose</span></span><span>(</span><span><span class="hljs-variable">$pipes</span></span><span>[</span><span><span class="hljs-number">2</span></span><span>]);

    </span><span><span class="hljs-variable">$status</span></span><span> = </span><span><span class="hljs-title function_ invoke__">proc_close</span></span><span>(</span><span><span class="hljs-variable">$process</span></span><span>);

    </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"စံ output ကို:\n<span class="hljs-subst">$stdout</span></span></span><span>\n";
    </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"စံအမှား:\n<span class="hljs-subst">$stderr</span></span></span><span>\n";
    </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"command ကို return status ကို: <span class="hljs-subst">$status</span></span></span><span>\n";
}
</span></span>

ဤနည်းလမ်းသည်ရှုပ်ထွေးသောလိုအပ်ချက်များကိုပိုမိုသင့်တော်သော output နှစ်ခုကိုတိကျစွာခွဲခြားနိုင်သည်။

ဆက်စပ်အကြောင်းအရာ