Php foreach Function _ PHP Tutorial

The foreach function in php. The Foreach function (PHP4PHP5) foreach syntax structure provides a simple way to traverse arrays. Foreach can only be applied to arrays and objects. if you try to apply it to variables of other data types, Foreach function (PHP4/PHP5)

The foreach syntax structure provides a simple way to traverse arrays.

Foreach can only be applied to arrays and objects. if you try to apply it to variables of other data types or uninitialized variables, an error message will be sent.

There are two syntaxes:

[Php]

Foreach (array_expression as $ value)

Statement

Foreach (array_expression as $ key => $ value)

Statement

Foreach (array_expression as $ value)

Statement

Foreach (array_expression as $ key => $ value)

Statement

Example 1:

[Php]

$ Arr = array (1, 2, 4 );

Foreach ($ arr as $ value ){

Echo $ value ."
";

}

?>

$ Arr = array (1, 2, 4 );

Foreach ($ arr as $ value ){

Echo $ value ."
";

}

?>

Example 2:

[Php]

$ Arr = array (1, 2, 4 );

Foreach ($ arr as $ key => $ value ){

Echo $ key. "===>". $ value ."
";

}

?>

$ Arr = array (1, 2, 4 );

Foreach ($ arr as $ key => $ value ){

Echo $ key. "===>". $ value ."
";

}

?>

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