PHP array to remove the same item

$a = Array (    "id" =>7, "title" = "A"),    Array ("id" =>5, "title" = "Z"), $b = Array (    array (" ID "=>5", "title" = "A"),    Array ("id" =>1, "title" = "Z"),    Array ("id" =>2, "title" = "Z"),);// Remove the item//Result $b = Array ("id"    =>1, "title" = "Z"),    Array ("id" =>2, "title" = "Z") in the $a of the ID in the $b,);

Reply to discussion (solution)

$a = Array (    "id" =>7, "title" = "A"),    Array ("id" =>5, "title" = "Z"), $b = Array (    array (" ID "=>5", "title" = "A"),    Array ("id" =>1, "title" = "Z"),    Array ("id" =>2, "title" = "Z"),); foreach ($b as $k = $v)  foreach ($a as $t) if ($v [' id '] = = $t [' id ']) unset ($b [$k]);p rint_r ($b);

Array ([    1] = = Array        (            [id] = 1            [title] = Z        )    [2] = = Array        (            [id] = 2< C8/>[title] (= z        ))

$a = Array (    "id" =>7, "title" = "A"),    Array ("id" =>5, "title" = "Z"), $b = Array (    Array ("id" =>5, "title" = "A"),    Array ("id" =>1, "title" = "Z"),    Array ("id" =>2, "title" = " Z "),); foreach ($b as $k = $v)  foreach ($a as $t) if ($v [' id '] = = $t [' id ']) unset ($b [$k]);p rint_r ($b);

Array (    [1] = = Array        (            [id] = 1            [title] = Z        )    [2] = = Array        (            [id] = 2            [title] = Z        ))

Remove an item during a loop, and the next loop is not affected?

foreach is unaffected
For affected

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