PHP? in_array() ??? ?? ? ??
PHP? in_array() ??? ?? ?? ??? ????? ???? ? ?? ?????. ??. ??? ? ?? ??? ?? ??? ? ??? ??? ????. ?? ?? ?? ??? ??? ???? ? ? ??? ?????.
?? ?? ???? ??? ?? ???:
??? ?? ?? ????? ????? ??? ????? array_intersect() ??? ?????. ? ?? ??? ???? ???? ? ?? ??? ?? ??? ??? ??? ?????. ???? ??? ???? ??? ???? ?? ?? ????? ??? ? ????.
?:
<code class="php">$haystack = array('apple', 'banana', 'orange', 'pear');
$target = array('apple', 'pear');
if(count(array_intersect($haystack, $target)) == count($target)){
echo 'All elements of $target are present in $haystack.';
}</code>
??? ?? ??? ?? ???? ??:
?? ?? ??? ???? ?? ?? ??? ? ? ?? ??? ?? ??? ?? ?? array_intersect()? ???? ??? ??? ?????. ???? ???? ??? ???? ?? ??? 0?? ?? ?????.
?:
<code class="php">if(count(array_intersect($haystack, $target)) > 0){
echo 'At least one element of $target is present in $haystack.';
}</code>
??? ??? ???? ????? ??? ? ????. ?? ?? ?? ?? ??? ???? ?? ?? ??? ?????.
? ??? in_array()? ???? PHP ??? ?? ?? ???? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
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