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PHPº¯Êý(2)

in_array(value,array,type)        //¼ì²éÒ»¸öÖµÊÇ·ñÔÚÊý×éÖÐ,type¿ÉÑ¡,ÉèÖÃΪtrue¼ì²éÀàÐÍÊÇ·ñÏàͬ,·Ö´óСд
Àý:
$os = array("Mac", "NT", "Irix", "Linux");
if (in_array("Irix", $os)) {
echo "Got Irix";
}
if (in_array("mac", $os)) {
echo "Got mac";
}

µÚ¶þ¸öÌõ¼þʧ°Ü£¬ÒòΪ in_array() ÊÇÇø·Ö´óСдµÄ£¬ËùÒÔÒÔÉϳÌÐòÏÔʾΪ:
Got Irix

in_array() ÑϸñÀàÐͼì²éÀý×Ó
$a = array('1.10', 12.4, 1.13);
if (in_array('12.4', $a, true)) {
echo "'12.4' found with strict check\n";
}
if (in_array(1.13, $a, true)) {
echo "1.13 found with strict check\n";
}

ÉÏÀý½«Êä³ö£º
1.13 found with strict check

in_array() ÖÐÓÃÊý×é×÷Ϊ needle
$a = array(array('p', 'h'), array('p', 'r'), 'o');
if (in_array(array('p', 'h'), $a)) {
echo "'ph' was found\n";
}
if (in_array(array('f', 'i'), $a)) {
echo "'fi' was found\n";
}
if (in_array('o', $a)) {
echo "'o' was found\n";
}
ÉÏÀý½«Êä³ö£º
'ph' was found
'o' was found



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