$result=mysql_query("SELECT * FROM books");// Iterate over the structurewhile($row=mysql_fetch_array($result)){// do stuff} 要遍历文本文件的内容,我们可以: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 $fh=fopen("books.txt","r");// Iterate over the structurewhile(!feof($fh)){...
// Fetch the "aggregate structure"$result=mysql_query("SELECT * FROM users");// Iterate over the structurewhile($row=mysql_fetch_array($result)){// do stuff with the row here} 读出一个目录中的内容,需要这样写: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 // Fetch the "aggregate ...
The foreach command is useful to iterate over arrays:$a3 = array('Aa', 'Bb', 'Cc'); foreach ($a3 as $v) { echo $v; }This sets $v to each element of the array in turn.A function may be defined:function myfunc($p1, $p2) { echo $p1, $p2; return $p1 + $p2; }...
($meals as $dish => $price) { // $price = $price * 2 does NOT work $meals[$dish] = $meals[$dish] * 2; } // Iterate over the array again and print the changed values foreach ($meals as $dish => $price) { printf("The new price of %s is \$%.2f.\n",$dish,$price)...
In Visual Basic .NET, the equivalent is theFor Each...Nextstatement. Code Sample 8 shows an example of looping over an array in each language.Code Sample 8. foreach loop in PHP$i = 0; foreach($a as $v) { print "\$Key[$i]$v \n"; $i++; } ...
Template oriented syntaxTwig has shortcuts for common patterns, like having a default text displayed when you iterate over an empty array: 1 2 3 4 5 {%foruser in users %}*{{ user.name }}{%else%}No users have been found.{%endfor%} ...
In this article we’ll take a look at generators which provide an easy way to implement simple iterators without the overhead or complexity of theIteratorinterface. How do Generators Work? According to Wikipedia, a generator “is very similar to a function that returns an array, in that a ...
The first argument is the view partial to render for each element in the array or collection. The second argument is the array or collection you wish to iterate over, while the third argument is the variable name that will be assigned to the current iteration within the view. So, for ...
The first argument is the view partial to render for each element in the array or collection. The second argument is the array or collection you wish to iterate over, while the third argument is the variable name that will be assigned to the current iteration within the view. So, for ...
↑ Iterate over the current array and execute a callback for each loop. EXAMPLE: $result = A::create(); $closure = function ($value, $key) use ($result) { $result[$key] = ':' . $value . ':'; }; a(['foo', 'bar' => 'bis'])->at($closure); // Arrayy[':foo:', ...