PHP array traversal example explanation

This article explains PHP array traversal examples.

Traversing the array

Traversing the array: It means going through each one once

1) for loop

is rarely used because it has defects

<!--?php

/*

Use a for loop to traverse the array

*/

/*

count(array[,1]) returns the number of data in the array, and can also get the number of multi-dimensional arrays. Of course, generally we only need to pass one array in.

$arr1=array( array(1,2,3), array(4,5,6) ); echo count($arr1,1);//2+6=8 */ $arr=array( 'a','b','c','d','e','f' ); for($i=0;$i Copy after login Variable 2){ //The statement executed in each loop variable 1 represents the index value of the data currently being experienced (accessed) Variable 1 represents the data currently being experienced (accessed)}

'傻逼', 'num'=>10 ); /* foreach($arr1 as $value){ echo $value.' '; } */ foreach($arr1 as $key=>$value){ echo $key.'=>'.$value.' '; } ?> '; } } '; foreach ($students as $val){ if($val[2]===true){ $val[2]='男'; }else{ $val[2]='女'; } echo "{$val[0]}{$val[1]}{$val[2]}{$val[3]}"; } echo ''; ?> Copy after login

This article explains PHP array traversal examples. For more related content, please pay attention to the PHP Chinese website.

Related recommendations:

PHP implementation of bucket sorting algorithm

##PHP array classification and array creation example explanation

php The use of pdo placeholder (code example explanation)