How to output an isosceles triangle in PHP, PHP outputs an isosceles triangle_PHP tutorial

How to output an isosceles triangle in PHP, and how to output an isosceles triangle in php

The example in this article describes how to output an isosceles triangle in PHP. Share it with everyone for your reference. The specific implementation method is as follows:

function isosceles($line,$sing){
  $tab ='=';  
  for($i=1;$i < $line+1;$i++){
    $blank = print_blank($i,$line,$tab);
    $code = print_code($i,$sing);
    echo $blank.$code.$blank."<br>";
  }
}
function print_blank($num,$line,$tab){
  $blank ='';
  for($i=$num;$i<$line;$i++){
    $blank.=$tab;
  }
  return $blank;
}
function print_code($num,$sing){
  $code ='';
  for($i=0;$i<(2*($num-1)+1);$i++){
    $code.=$sing;
  }
  return $code;
}
$line = 5;
$sing = "*";
isosceles($line,$sing);

The running results are as follows:

====*====
===****===
==*****==
=*******=
*********

I hope this article will be helpful to everyone’s PHP programming design.

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