3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = " <p>1</p> <p>2</p> <p>3</p> <p>4</p> <p>5</p> <p>6</p> <p>7</p> <p>8</p> <p>9</p> <p>10</p> <p>11</p> <p>12</p> <p>13</p> <p>14</p> <p>15</p> <p>16</p> <p>17</p> "; echo preg_replace('~(?:.*?</p>){5}\K~s', "\n [next]", $string);
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
<p>1</p> <p>2</p> <p>3</p> <p>4</p> <p>5</p> [next] <p>6</p> <p>7</p> <p>8</p> <p>9</p> <p>10</p> [next] <p>11</p> <p>12</p> <p>13</p> <p>14</p> <p>15</p> [next] <p>16</p> <p>17</p>
preferences:
118.12 ms | 407 KiB | 5 Q