How to add 1 to 100 using PHP

In PHP, you can use the for loop statement to implement the function of adding 1 to 100. The for loop can loop and execute the specified code block under specified conditions. The syntax is "for($i=1;$i< ;=100;$i ){$sum =$i;}”.

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Use PHP to implement 1 Method of adding to 100

In PHP, you can use the for loop statement to achieve the accumulation of numbers. If you have determined the number of times the script will run in advance, you can use the for loop.

The syntax is as follows:

for (init counter; test counter; increment counter) {
  code to be executed;
}

What needs to be noted is:

• init counter: initialize the value of the loop counter

• test counter: Evaluated for each loop iteration. If the value is TRUE, continue looping. If its value is FALSE, the loop ends.

• increment counter: increase the value of the loop counter

The example is as follows:

<?php //1-100利用for循环1-100累加
 $sum=0;//初始化sum值为0
for($i=1;$i<=100;$i++){//定义i，循环次数，一般求1-100的和，从1开始一直加到100
          $sum+=$i;//每次累加传给sum，然后i循环，直道100。
}
echo "1-100之间累加的和为".$sum;
?>

Output result:

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